Q: What are the prime factors of the number 202,105,232?

 A: 2, 7, 23, 67, 1171

Why are those the prime factors of the number 202,105,232?

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 202,105,232

202,105,232
Factor Arrows
2101,052,616
Factor Arrows
250,526,308
Factor Arrows
225,263,154
Factor Arrows
212,631,577
Factor Arrows
71,804,511
Factor Arrows
2378,457
Factor Arrows
671,171

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, 7, 23, 67, 1171

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 23 x 67 x 1,171 = 202,105,232

This can also be written as 24 x 71 x 231 x 671 x 1,1711 = 202,105,232

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


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