Q: What are the prime factors of the number 630,644,630?

 A: 2, 5, 7, 11, 379, 2161

Why are those the prime factors of the number 630,644,630?

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 630,644,630

630,644,630
Factor Arrows
2315,322,315
Factor Arrows
563,064,463
Factor Arrows
79,009,209
Factor Arrows
11819,019
Factor Arrows
3792,161

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, 5, 7, 11, 379, 2161

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 11 x 379 x 2,161 = 630,644,630

This can also be written as 21 x 51 x 71 x 111 x 3791 x 2,1611 = 630,644,630

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


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