Q: What are the prime factors of the number 838,629?

 A: 3, 11, 43, 197

Why are those the prime factors of the number 838,629?

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 838,629

838,629
Factor Arrows
3279,543
Factor Arrows
393,181
Factor Arrows
118,471
Factor Arrows
43197

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, 11, 43, 197

We can check our work by multiplying all of the prime factors together: 3 x 3 x 11 x 43 x 197 = 838,629

This can also be written as 32 x 111 x 431 x 1971 = 838,629

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


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