Q: What are the prime factors of the number 312,537,472?

 A: 2, 13, 187823

Why are those the prime factors of the number 312,537,472?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 312,537,472

312,537,472
Factor Arrows
2156,268,736
Factor Arrows
278,134,368
Factor Arrows
239,067,184
Factor Arrows
219,533,592
Factor Arrows
29,766,796
Factor Arrows
24,883,398
Factor Arrows
22,441,699
Factor Arrows
13187,823

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 13, 187823

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 13 x 187,823 = 312,537,472

This can also be written as 27 x 131 x 187,8231 = 312,537,472

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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