Q: What are the prime factors of the number 929,628?

 A: 2, 3, 7, 17, 31

Why are those the prime factors of the number 929,628?

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 929,628

929,628
Factor Arrows
2464,814
Factor Arrows
2232,407
Factor Arrows
377,469
Factor Arrows
325,823
Factor Arrows
73,689
Factor Arrows
7527
Factor Arrows
1731

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, 7, 17, 31

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 7 x 7 x 17 x 31 = 929,628

This can also be written as 22 x 32 x 72 x 171 x 311 = 929,628

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


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