Q: What are the prime factors of the number 57,776,628?

 A: 2, 3, 7, 13, 157, 337

Why are those the prime factors of the number 57,776,628?

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 57,776,628

57,776,628
Factor Arrows
228,888,314
Factor Arrows
214,444,157
Factor Arrows
34,814,719
Factor Arrows
7687,817
Factor Arrows
1352,909
Factor Arrows
157337

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, 3, 7, 13, 157, 337

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 13 x 157 x 337 = 57,776,628

This can also be written as 22 x 31 x 71 x 131 x 1571 x 3371 = 57,776,628

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


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