Q: What are the prime factors of the number 71,523,445?

 A: 5, 7, 23, 3863

Why are those the prime factors of the number 71,523,445?

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 71,523,445

71,523,445
Factor Arrows
514,304,689
Factor Arrows
72,043,527
Factor Arrows
2388,849
Factor Arrows
233,863

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:

5, 7, 23, 3863

We can check our work by multiplying all of the prime factors together: 5 x 7 x 23 x 23 x 3,863 = 71,523,445

This can also be written as 51 x 71 x 232 x 3,8631 = 71,523,445

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


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