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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

How do you write the number one zillion in numbers?

Oh, what a delightful question! You see, my friend, zillion is a fun word we use to express a very large, undefined number. While we can't write "one zillion" as a specific numeral, we can imagine it as a number so big it fills our hearts with wonder and possibility. Just remember, in the world of art and numbers, there's always room for imagination and creativity!

A number multiplied by itself make 16 what is the number?

Oh, dude, you're hitting me with some math right now? Okay, so if a number multiplied by itself equals 16, then the number must be 4. Like, it's basic algebra, man. So yeah, the number is 4. Math problem solved, next!

Write all the natural numbers from 26 to 50. What fraction of them are prime numbers?

Oh, what a happy little question! Let's paint a picture with numbers. The natural numbers from 26 to 50 are 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, and 50. Out of these, the prime numbers are 29, 31, 37, 41, 43, and 47. So, the fraction of prime numbers out of these natural numbers is 6/25, which is like a little hidden gem in our numerical landscape.

How many prime numbers between 1 and 8888888888888888888888888888888888888888888888?

To determine the number of prime numbers between 1 and 8888888888888888888888888888888888888888888888, we can use the Prime Number Theorem. This theorem states that the density of prime numbers around a large number n is approximately 1/ln(n). Therefore, the number of prime numbers between 1 and 8888888888888888888888888888888888888888888888 can be estimated by dividing ln(8888888888888888888888888888888888888888888888) by ln(2), which gives approximately 1.33 x 10^27 prime numbers.

What multiplied by what equals 139?

To find two numbers that multiply to 139, we need to consider the factors of 139. The factors of 139 are 1 and 139, as 139 is a prime number. Therefore, the two numbers that multiply to 139 are 1 and 139.

Is 12 and 18 prime to each other?

No, 12 and 18 are not prime to each other. Two numbers are considered prime to each other if their greatest common divisor is 1. In this case, the greatest common divisor of 12 and 18 is 6, not 1. Therefore, 12 and 18 are not prime to each other.

13 and 15 are twin prime?

Actually, 13 and 15 are not twin primes because twin primes are pairs of prime numbers that have a difference of 2 between them. In this case, 13 is a prime number, but 15 is not a prime number because it can be divided by 3 and 5 in addition to 1 and itself. Therefore, 13 and 15 do not meet the criteria to be considered twin primes.

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?

To find the prime factors of 84, we first break it down into its prime factors: 84 = 2^2 * 3 * 7. Then, to calculate 84 cubed, we cube each prime factor: (2^2)^3 * 3^3 * 7^3 = 2^6 * 3^3 * 7^3. So, 84 cubed can be expressed as the product of its prime factors in index form as 2^6 * 3^3 * 7^3.

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?

The numbers that multiply to 144 and equal 7 are not whole numbers. To find these numbers, we need to use algebra. Let the two numbers be x and y. We can set up the equation xy = 144 and x = 7/y. Substituting the second equation into the first gives us y(7/y) = 144, which simplifies to 7 = 144/y. Solving for y, we get y = 144/7, which is approximately 20.57. Therefore, the numbers that multiply to 144 and equal 7 are approximately 7 and 20.57.

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?

If the numerator of a fraction is a prime number, then the fraction cannot be simplified any further if the denominator is not a factor of the numerator. This is because a prime number has only two factors: 1 and itself. Therefore, the fraction is already in its simplest form.

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.