Q: What are the prime factors of the number 125,156,388?

 A: 2, 3, 7, 212851

Why are those the prime factors of the number 125,156,388?

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 125,156,388

125,156,388
Factor Arrows
262,578,194
Factor Arrows
231,289,097
Factor Arrows
310,429,699
Factor Arrows
71,489,957
Factor Arrows
7212,851

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, 7, 212851

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 7 x 212,851 = 125,156,388

This can also be written as 22 x 31 x 72 x 212,8511 = 125,156,388

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


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