Q: What are the prime factors of the number 156,316,224?

 A: 2, 3, 17, 83, 577

Why are those the prime factors of the number 156,316,224?

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 156,316,224

156,316,224
Factor Arrows
278,158,112
Factor Arrows
239,079,056
Factor Arrows
219,539,528
Factor Arrows
29,769,764
Factor Arrows
24,884,882
Factor Arrows
22,442,441
Factor Arrows
3814,147
Factor Arrows
1747,891
Factor Arrows
83577

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, 17, 83, 577

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 3 x 17 x 83 x 577 = 156,316,224

This can also be written as 26 x 31 x 171 x 831 x 5771 = 156,316,224

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


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