Q: What are the prime factors of the number 56,761,642?

 A: 2, 7, 29, 251, 557

Why are those the prime factors of the number 56,761,642?

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 56,761,642

56,761,642
Factor Arrows
228,380,821
Factor Arrows
74,054,403
Factor Arrows
29139,807
Factor Arrows
251557

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, 7, 29, 251, 557

We can check our work by multiplying all of the prime factors together: 2 x 7 x 29 x 251 x 557 = 56,761,642

This can also be written as 21 x 71 x 291 x 2511 x 5571 = 56,761,642

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


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