Q: What are the prime factors of the number 629,948?

 A: 2, 11, 103, 139

Why are those the prime factors of the number 629,948?

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 629,948

629,948
Factor Arrows
2314,974
Factor Arrows
2157,487
Factor Arrows
1114,317
Factor Arrows
103139

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, 11, 103, 139

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 103 x 139 = 629,948

This can also be written as 22 x 111 x 1031 x 1391 = 629,948

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


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