Q: What are the prime factors of the number 100,031,316?

 A: 2, 3, 7, 11, 73, 1483

Why are those the prime factors of the number 100,031,316?

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 100,031,316

100,031,316
Factor Arrows
250,015,658
Factor Arrows
225,007,829
Factor Arrows
38,335,943
Factor Arrows
71,190,849
Factor Arrows
11108,259
Factor Arrows
731,483

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, 11, 73, 1483

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 11 x 73 x 1,483 = 100,031,316

This can also be written as 22 x 31 x 71 x 111 x 731 x 1,4831 = 100,031,316

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


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