Factoring:
518 = 2 * 259
Since 518 is even (it ends in 8, which is even) I know I can divide by 2.
518 = 2 * 7 * 37
Changing 259 into prime factors takes some work. Start by trying to divide it by 2, then 3, then 5, then 7 etc. Once you divide by 7 and get 37, that's as far as you can go. 37 is a Prime number and cannot be factored any further.
The prime factors of 518 are: 2, 7, 37.
The set of prime factors of the numbers from 1 to 15,000 would be the set of prime numbers between 1 and 15,000. The link below has a list of the first 10,000 prime numbers, so if you take the primes less than 15,000, you will have the set of prime factors of the first 15,000 numbers. For prime factors of individual numbers, check the related question, "What are the prime factors of the numbers from 1 to 200?" Also check for WikiAnswers questions in the form of "What are the prime factors of __?" and "What are the factors and prime factors of __?"
1, 31 (31 is a prime!)
List all the factors of each number. Which factors are prime factors between 20 and 28.
The following numbers less than 50 have 2 prime factors. Some are squares, having two of the same prime factor. Some have two different prime factors. The prime factors of 4 are 2 and 2. The prime factors of 6 are 2 and 3. The prime factors of 9 are 3 and 3. The prime factors of 10 are 2 and 5. The prime factors of 14 are 2 and 7. The prime factors of 15 are 3 and 5. The prime factors of 21 are 3 and 7. The prime factors of 22 are 2 and 11. The prime factors of 25 are 5 and 5. The prime factors of 26 are 2 and 13. The prime factors of 33 are 3 and 11. The prime factors of 34 are 2 and 17. The prime factors of 35 are 5 and 7. The prime factors of 38 are 2 and 19. The prime factors of 39 are 3 and 13. The prime factors of 46 are 2 and 23. The prime factors of 49 are 7 and 7.
The factors of 21 are 1, 3, 7, and 21 which means that 21 is composite.
The list of prime numbers is infinite. There are two factors for each.
The factors of 518 are: 1 2 7 14 37 74 259 518
The prime factors of 40 are 2 and 5
factors: 1, 2, 7, 13, 14, 26, 37, 74, 91, 182, 259, 481, 518, 962, 3367 prime factors: 2, 7, 13, 37
73 is Prime, therefore there are no factors to list except for 1.
The factors of 9842 are: 1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 266, 518, 703, 1406, 4921, and 9842.The prime factors of 9842 are: 2, 7, 19, and 37.
518 = 2 x 7 x 37
You cannot list all the potential prime factors. Any prime number can be a prime factor. There are an infinite number of prime numbers, so there are an infinite number of potential prime factors. If given a specific number, the prime factors for it can be listed.
List all the factors. Select the ones that are prime numbers.
No difference. Once you've found the factors of a number, the prime numbers on that list are the prime factors.
Out of the list of factors of 36, 2 and 3 are the only prime numbers.
The factors of 27 are 1,3,9,27 It's NOT prime it IS composite