Q: What are the prime factors of the number 56,700,144?

 A: 2, 3, 43, 9157

Why are those the prime factors of the number 56,700,144?

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 56,700,144

56,700,144
Factor Arrows
228,350,072
Factor Arrows
214,175,036
Factor Arrows
27,087,518
Factor Arrows
23,543,759
Factor Arrows
31,181,253
Factor Arrows
3393,751
Factor Arrows
439,157

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, 43, 9157

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 43 x 9,157 = 56,700,144

This can also be written as 24 x 32 x 431 x 9,1571 = 56,700,144

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


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