Q: What are the prime factors of the number 636,645,300?

 A: 2, 3, 5, 2122151

Why are those the prime factors of the number 636,645,300?

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 636,645,300

636,645,300
Factor Arrows
2318,322,650
Factor Arrows
2159,161,325
Factor Arrows
353,053,775
Factor Arrows
510,610,755
Factor Arrows
52,122,151

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, 2122151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 2,122,151 = 636,645,300

This can also be written as 22 x 31 x 52 x 2,122,1511 = 636,645,300

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


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