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Prime Numbers

A prime number is a number that has exactly two factors: 1 and itself. All whole numbers greater than 1 are either prime numbers or can be written as the product of prime numbers. There are an infinite number of prime numbers, but they occur less frequently among larger numbers. Prime numbers are important in cryptography and number theory.

30,833 Questions

What are the factors and prime factors of 550?

The factors of 550 are numbers that can be multiplied together to give the product 550. The factors of 550 are 1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 275, and 550. Prime factors are factors that are prime numbers, which means they can only be divided by 1 and themselves. The prime factors of 550 are 2, 5, and 11.

What is the next number in the sequence 1 2 5 10 20?

The sequence appears to be increasing at a variable rate. The pattern seems to be adding 1, then 3, then 5, then 10. Following this pattern, the next number in the sequence would be 20 + 15, which equals 35.

Why is 169 not a prime number?

Well, hello there! Let's talk about why 169 is not a prime number. You see, a prime number is a number that is only divisible by 1 and itself. Now, when we look at 169, we can see that it can be divided by 13 and 1, as well as 169 and 1. So, 169 is not a prime number, but it's still a special number in its own way.

What is the LCM of 84 and 360 using prime factorization?

Well, isn't that just a happy little question! To find the LCM of 84 and 360 using prime factorization, we first break down each number into its prime factors. For 84, that's 2^2 * 3 * 7, and for 360, it's 2^3 * 3^2 * 5. Then, we take the highest power of each prime factor that appears in either number, which gives us 2^3 * 3^2 * 5 * 7, resulting in an LCM of 2,520.

What and 84 cubed as a product of it and prime factors in index form?

Oh, dude, you're hitting me with the math questions! Alright, so 84 cubed is 592,704. To break it down into prime factors, you'd be like, "Hey, 2, 3, and 7, what's up?" And they'd be like, "We're the prime factors of 592,704, bro." So, in index form, it would be 2^6 x 3^3 x 7^2. Easy peasy, lemon squeezy!

What are the prime numbers from 1 to 500?

Prime numbers are integers greater than 1 that have no divisors other than 1 and themselves. The prime numbers from 1 to 500 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 347, 349, 353, 359, 367, 373, 379, 383, 389, 397, 401, 409, 419, 421, 431, 433, 439, 443, 449, 457, 461, 463, 467, 479, 487, 491, 499.

What numbers multiply 144 and equal 7?

Oh, what a happy little math question! To find two numbers that multiply to 144 and equal 7, we can think of it like a little math puzzle. The numbers are 8 and 18 - when you multiply them together, you get 144, and when you add them, you get 26, which is not 7. It's all about finding the right combination, and you did a fantastic job exploring the numbers!

What two numbers can you multiply to get 39?

Oh, what a happy little question! You can multiply the numbers 3 and 13 to get 39. Just like mixing colors on your palette, these numbers come together beautifully to create a perfect harmony of 39. Remember, there are many ways to reach an answer, just like there are many ways to paint a beautiful landscape.

Is number 19 prime composite or neither?

Well, darling, number 19 is as prime as a fine wine. It can't be divided by anything other than 1 and itself, making it a prime number. So, rest easy knowing that 19 is standing strong in the prime club, not messing around with any composite nonsense.

What are the even numbers between 30 and 49?

The even numbers between 30 and 49 are 32, 34, 36, 38, 40, 42, 44, 46, and 48. An even number is any integer that is divisible by 2 without leaving a remainder. In this case, we are looking for numbers in the range from 30 to 49 that are divisible by 2.

Express 390 as a product of prime factors?

To express 390 as a product of prime factors, we first divide it by the smallest prime number, which is 2. This gives us 195. Next, we divide 195 by 3 to get 65. Continuing this process, we divide 65 by 5 to get 13. Since 13 is a prime number, the prime factorization of 390 is 2 x 3 x 5 x 13.

If the numerator of a fraction is a prime number can the fraction be simplified?

Well, honey, if the numerator of a fraction is a prime number, and the denominator is not a factor of that prime number, then the fraction cannot be simplified any further. Prime numbers are divas that don't like to be divided by anything other than 1 and themselves. So, sit back, relax, and embrace that simplified fraction like the fabulous mathematical masterpiece it is.

What prime numbers subtracted equal 14?

The prime numbers that can be subtracted to equal 14 are 17 and 3. This is because 17 - 3 = 14. Prime numbers are numbers greater than 1 that have no divisors other than 1 and themselves. In this case, 17 and 3 are both prime numbers, and their difference is 14.

Write the number 1269 as a product of prime factors?

To express the number 1269 as a product of prime factors, we need to find its prime factors. We start by dividing it by the smallest prime number, which is 2. 1269 ÷ 2 = 634.5, which is not a whole number. Moving on to the next prime number, 3, we find that 1269 ÷ 3 = 423. Continuing this process, we find that 423 ÷ 3 = 141, and 141 ÷ 3 = 47. Therefore, the prime factorization of 1269 is 3 x 3 x 47.

What is 27 expressed as a product of prime numbers?

To express 27 as a product of prime numbers, we need to find the prime factors of 27. The prime factorization of 27 is 3 x 3 x 3, where 3 is a prime number. Therefore, 27 can be expressed as 3^3, where 3 is raised to the power of 3.

When the spinner is spun once what is the prbability of spinning a prime number?

To determine the probability of spinning a prime number on a spinner, we first need to identify the prime numbers on the spinner. Prime numbers are integers greater than 1 that are only divisible by 1 and themselves. Common prime numbers less than 10 include 2, 3, 5, and 7. If the spinner has numbers 1 through 10, there are 4 prime numbers out of 10 possible outcomes. Therefore, the probability of spinning a prime number on the spinner is 4/10 or 40%.

Is the number of days in a week composite or prime?

The number of days in a week, which is 7, is a prime number. A prime number is a number greater than 1 that can only be divided by 1 and itself without leaving a remainder. In the case of 7, it cannot be divided evenly by any other number except 1 and 7, making it a prime number.

What is the best method for effectively cleaning a composite sink using a composite sink cleaner?

The best method for effectively cleaning a composite sink using a composite sink cleaner is to first rinse the sink with water, then apply the cleaner according to the manufacturer's instructions. Use a soft sponge or cloth to scrub the sink gently, focusing on any stains or buildup. Rinse the sink thoroughly with water after cleaning to remove any residue.

What is the prime factorization of 720 in exponential form?

Oh, dude, you're hitting me with some math lingo now? Alright, so the prime factorization of 720 is 2^4 * 3^2 * 5. That's like breaking down a big number into its prime factors, so you can see what it's made of. Math can be fun, right?

What prime numbers multiply to get 85?

The prime factorization of 85 is 5 x 17. Both 5 and 17 are prime numbers, and when multiplied together, they equal 85. Prime numbers are numbers greater than 1 that can only be divided by 1 and themselves without leaving a remainder.

Why is the prime factorization of 45 equals 3x3x5?

The prime factorization of a number breaks it down into its prime factors. In the case of 45, it can be expressed as 3 x 3 x 5. This is because 45 can be divided by 3 twice and by 5 once, resulting in the prime factors of 3 and 5. This prime factorization represents the unique combination of prime numbers that, when multiplied together, equal 45.

Dan found a two digit odd number one of its digits was half the other the number was greater than 50 what number did dan find?

Well, isn't that a happy little mystery we have here, friend! Let's think about this together. Since the number is greater than 50 and has two digits, we can deduce that the number is 75. One digit is 5 and the other digit is half of 5, which is 2.5, but since we can't have a half digit, we round it up to 3. So Dan found the number 53.

What are the prime numbers between 200 and 250?

The numbers 211, 223, 227, 229, 233, 239 and 241 are prime.