Q: What are the prime factors of the number 693,378?

 A: 2, 3, 7, 5503

Why are those the prime factors of the number 693,378?

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 693,378

693,378
Factor Arrows
2346,689
Factor Arrows
3115,563
Factor Arrows
338,521
Factor Arrows
75,503

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, 5503

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 7 x 5,503 = 693,378

This can also be written as 21 x 32 x 71 x 5,5031 = 693,378

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


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