Q: What are the prime factors of the number 63,181,380?

 A: 2, 3, 5, 389, 2707

Why are those the prime factors of the number 63,181,380?

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 63,181,380

63,181,380
Factor Arrows
231,590,690
Factor Arrows
215,795,345
Factor Arrows
35,265,115
Factor Arrows
51,053,023
Factor Arrows
3892,707

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, 5, 389, 2707

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 389 x 2,707 = 63,181,380

This can also be written as 22 x 31 x 51 x 3891 x 2,7071 = 63,181,380

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


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