Q: What are the prime factors of the number 137,625,761?

 A: 7, 13, 17, 71, 179

Why are those the prime factors of the number 137,625,761?

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 137,625,761

137,625,761
Factor Arrows
719,660,823
Factor Arrows
72,808,689
Factor Arrows
13216,053
Factor Arrows
1712,709
Factor Arrows
71179

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:

7, 13, 17, 71, 179

We can check our work by multiplying all of the prime factors together: 7 x 7 x 13 x 17 x 71 x 179 = 137,625,761

This can also be written as 72 x 131 x 171 x 711 x 1791 = 137,625,761

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


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