Q: What are the prime factors of the number 636,376?

 A: 2, 13, 29, 211

Why are those the prime factors of the number 636,376?

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 636,376

636,376
Factor Arrows
2318,188
Factor Arrows
2159,094
Factor Arrows
279,547
Factor Arrows
136,119
Factor Arrows
29211

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, 13, 29, 211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 29 x 211 = 636,376

This can also be written as 23 x 131 x 291 x 2111 = 636,376

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


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