Q: What are the prime factors of the number 412,631,625?

 A: 3, 5, 7, 191, 823

Why are those the prime factors of the number 412,631,625?

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 412,631,625

412,631,625
Factor Arrows
3137,543,875
Factor Arrows
527,508,775
Factor Arrows
55,501,755
Factor Arrows
51,100,351
Factor Arrows
7157,193
Factor Arrows
191823

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, 5, 7, 191, 823

We can check our work by multiplying all of the prime factors together: 3 x 5 x 5 x 5 x 7 x 191 x 823 = 412,631,625

This can also be written as 31 x 53 x 71 x 1911 x 8231 = 412,631,625

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


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