Q: What are the prime factors of the number 315,221,024?

 A: 2, 109, 90373

Why are those the prime factors of the number 315,221,024?

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 315,221,024

315,221,024
Factor Arrows
2157,610,512
Factor Arrows
278,805,256
Factor Arrows
239,402,628
Factor Arrows
219,701,314
Factor Arrows
29,850,657
Factor Arrows
10990,373

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, 109, 90373

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 109 x 90,373 = 315,221,024

This can also be written as 25 x 1091 x 90,3731 = 315,221,024

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


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