Q: What are the prime factors of the number 315,276,304?

 A: 2, 7, 61, 46147

Why are those the prime factors of the number 315,276,304?

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 315,276,304

315,276,304
Factor Arrows
2157,638,152
Factor Arrows
278,819,076
Factor Arrows
239,409,538
Factor Arrows
219,704,769
Factor Arrows
72,814,967
Factor Arrows
6146,147

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, 7, 61, 46147

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 61 x 46,147 = 315,276,304

This can also be written as 24 x 71 x 611 x 46,1471 = 315,276,304

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


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