Q: What are the prime factors of the number 71,234,528?

 A: 2, 31, 71809

Why are those the prime factors of the number 71,234,528?

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 71,234,528

71,234,528
Factor Arrows
235,617,264
Factor Arrows
217,808,632
Factor Arrows
28,904,316
Factor Arrows
24,452,158
Factor Arrows
22,226,079
Factor Arrows
3171,809

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, 31, 71809

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 31 x 71,809 = 71,234,528

This can also be written as 25 x 311 x 71,8091 = 71,234,528

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


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