Q: What are the prime factors of the number 56,157,216?

 A: 2, 3, 584971

Why are those the prime factors of the number 56,157,216?

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 56,157,216

56,157,216
Factor Arrows
228,078,608
Factor Arrows
214,039,304
Factor Arrows
27,019,652
Factor Arrows
23,509,826
Factor Arrows
21,754,913
Factor Arrows
3584,971

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, 3, 584971

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 584,971 = 56,157,216

This can also be written as 25 x 31 x 584,9711 = 56,157,216

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


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