Q: What are the prime factors of the number 71,752,356?

 A: 2, 3, 13, 139, 1103

Why are those the prime factors of the number 71,752,356?

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 71,752,356

71,752,356
Factor Arrows
235,876,178
Factor Arrows
217,938,089
Factor Arrows
35,979,363
Factor Arrows
31,993,121
Factor Arrows
13153,317
Factor Arrows
1391,103

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, 13, 139, 1103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 13 x 139 x 1,103 = 71,752,356

This can also be written as 22 x 32 x 131 x 1391 x 1,1031 = 71,752,356

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


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