Q: What are the prime factors of the number 636,430?

 A: 2, 5, 31, 2053

Why are those the prime factors of the number 636,430?

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 636,430

636,430
Factor Arrows
2318,215
Factor Arrows
563,643
Factor Arrows
312,053

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, 31, 2053

We can check our work by multiplying all of the prime factors together: 2 x 5 x 31 x 2,053 = 636,430

This can also be written as 21 x 51 x 311 x 2,0531 = 636,430

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


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