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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 equal 23 in multiplication?
To find two numbers that equal 23 when multiplied together, we can use algebraic equations. Let's denote the two numbers as x and y. We have the equation x * y = 23. To solve for x and y, we can factorize 23 as 1 * 23 or -1 * -23. Therefore, the two numbers that equal 23 in multiplication are 1 and 23, or -1 and -23.
What is the prime number between 61 and 70?
Oh, dude, the prime number between 61 and 70 is 67. It's like the cool kid at the prime number party, standing out from the rest with its indivisibility swagger. So yeah, 67 is the prime number you're looking for in that range.
What is the probability to choose a prime number from numbers 1 to 50?
Well, honey, there are 15 prime numbers between 1 and 50. So, the probability of choosing a prime number from that range would be 15 (prime numbers) divided by 50 (total numbers), which simplifies to 3/10 or 30%. Math doesn't have to be boring, darling!
What are all the prime numbers between 190 and 200?
Oh, what a happy little question! Let's see, between 190 and 200, we have the prime numbers 191 and 193. They are like little gems shining brightly in a mathematical meadow. Just remember, every number is special in its own way, just like every brushstroke on a canvas.
Which 2 numbers are the partial products of 77 x 30?
wow it is 2100 and 210 also i am awnsering during covid and i hope covid will be gone in the future #2021_covid (▀̿Ĺ̯▀̿ ̿)
What are the prime numbers from 2 to 200?
The numbers 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 and 199 are prime (including the boundaries).
Can you Express as a product of prime factors 1875?
Oh, what a happy little question! Let's break down 1875 into its prime factors. We start by dividing 1875 by the smallest prime number, which is 3. Then we keep dividing until we can't go any further. When we're done, we'll have 1875 expressed as a product of prime factors, creating a beautiful mathematical masterpiece.
Sum of first 15 prime numbers?
Not including 1 as a prime number.
Prime Numbers are ones that can only divide by themselves and 1 with no remainder.
therefore the first 15 are:
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47.
2+3+5+7+11+13+17+19+23+29+31+37+41+43+47
= 359
What are the factors and prime factors of 3190?
The factors of 3190 are the numbers that can be multiplied together to result in 3190. The factors of 3190 are 1, 2, 5, 10, 11, 22, 55, 110, 29, 58, 145, 290, 319, 638, 1595, and 3190. The prime factors of 3190 are the prime numbers that can be multiplied together to result in 3190. The prime factors of 3190 are 2, 5, 11, 29.
What are the sum of the prime numbers between 51 and 69?
Oh, dude, you're really testing my math skills here. Let me grab my calculator... just kidding. The sum of the prime numbers between 51 and 69 is 53 + 59 + 61 + 67, which equals 240. So, like, if you were wondering if you could impress your friends with this fact at a party, you totally can.
What is the prime factor tree of 98175?
To find the prime factor tree of 98175, we start by dividing it by the smallest prime number, which is 3. 98175 divided by 3 is 32725. Then, we divide 32725 by 5 to get 6545. Continuing this process, we find that the prime factor tree of 98175 is 3 x 5 x 5 x 7 x 11 x 11.
What is the flowchart for finding the prime numbers?
Well, let's think of prime numbers as little hidden gems in a vast garden. To find them, you start by choosing a number and then checking if it can only be divided by 1 and itself. If it can, then you've found a prime number! Keep exploring the numbers in the garden, one by one, following this path until you've discovered all the special prime numbers shining brightly. Remember, each number is unique and has its own beauty to reveal.
How do you find prime factors?
To determine the prime factors of a number:
Try to divide the number by the lowest prime number, which is 2. If it divides evenly mark that number down as one of the prime factors, and continue with the result, trying to divide that prime factor into it. Continue dividing that prime factor into the results until it no longer divides evenly. If it does not divide evenly, move to the next lowest prime number and repeat the process until you have a result that is a prime number. Now you have all the prime factors.
Example: Find the prime factors of 128.
The prime factors are in bold.
128 ÷ 2 = 64
64 ÷ 2 = 32
32 ÷ 2 = 16
16 ÷ 2 = 8
8 ÷ 2 = 4
4 ÷ 2 = 2 which is a prime factor and thus the final prime factor.
Therefore, the prime factors of 128 are 2, 2, 2, 2, 2, 2, and 2; the prime factorization is 2 x 2 x 2 x 2 x 2 x 2 x 2.
Example: Find the prime factors of 108.
108 ÷ 2 = 54
54 ÷ 2 = 27
27 is not divisible by 2, so try 3.
27 ÷ 3 = 9
9 ÷ 3 = 3 which is a prime factor and thus the final prime factor.
Therefore the prime factors of 108 are 2, 2, 3, 3, and 3; the prime factorization is 2 x 2 x 3 x 3 x 3.
Example: Find the prime factors of 1463.
1463 is not divisible by 2 or 3 or 5, but it is divisible by 7.
1463 ÷ 7 = 209
209 is not divisible 7, so try the next prime number, which is 11.
209 ÷ 11 = 19 which is a prime factor and thus the final prime factor.
Therefore, the prime factors of 1463 are 7, 11, and 19; the prime factorization is 7 x 11 x 19.
Another way to determine the prime factors is to use a factor tree. To make a factor tree, find two numbers whose product is the given number. Then, if those numbers are not prime, do the same for them. Continue until all numbers are prime.
Example: Find the prime factors of 54 using a factor tree.
54
6 x 9
2x3 x 3x3
Therefore, the prime factors of 54 are 2, 3, 3, and 3; the prime factorization is 2 x 3 x 3 x 3.
For other examples of factor trees, see the related question on factoring terminology.
you find it by using exponents and by dividing the two numbers
you do a mutiple of that to get the number you re factoring by then make prime factor tree
What are all of the numbers that round to 80?
Numbers that round to 80 are those that fall between 75 and 84. When rounding to the nearest ten, any number 75 to 84 will round to 80. This is because the midpoint between 75 and 84 is 79.5, which rounds up to 80. Therefore, the numbers that round to 80 are 75, 76, 77, 78, 79, 80, 81, 82, 83, and 84.
What number is bigger -29 or -59?
It depends on what you mean by "bigger." If you are talking about value, -29 would be "bigger" because it is farther to the right on a number line. If you mean digitwise, -59 would be correct.
What is the product of the first 100 prime numbers?
I think I did it right. Not sure what good this is, what purpose it could serve, but here it is:
11 356 769 871 639 834 366 628 078 343 660 801 213 021 002 603 808 017 113 484 083 456 481 393 624 183 355 161 423 988 601 739 578 097 269 175 036 999 016 380 044 894 643 879 365 114 584 536 377 648 421 251 919 478 851 653 433 974 523 196 310 641 702 368 516 916 764 541 545 146 381 989 396 087 448 510
What are the prime numbers of 41 42 43 44 45 46 47 48 49 50?
The prime numbers among the given list are 41 and 47. A prime number is a natural number greater than 1 that cannot be formed by multiplying two smaller natural numbers. In this case, 41 and 47 cannot be divided evenly by any other number besides 1 and themselves, making them prime.
What is the prime factorization of 1665 using exponents?
The prime factorization of 1665 can be found by breaking down the number into its prime factors. First, we divide 1665 by the smallest prime number, 3, to get 555. Then, we divide 555 by 3 again to get 185. Continuing this process, we find that 185 is equal to 5 x 37. Therefore, the prime factorization of 1665 is 3^1 x 5^1 x 37^1.
