Q: What are the prime factors of the number 56,726,163?

 A: 3, 13, 17957

Why are those the prime factors of the number 56,726,163?

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 56,726,163

56,726,163
Factor Arrows
318,908,721
Factor Arrows
36,302,907
Factor Arrows
32,100,969
Factor Arrows
3700,323
Factor Arrows
3233,441
Factor Arrows
1317,957

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:

3, 13, 17957

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 13 x 17,957 = 56,726,163

This can also be written as 35 x 131 x 17,9571 = 56,726,163

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


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