Q: What are the prime factors of the number 693,504?

 A: 2, 3, 7, 43

Why are those the prime factors of the number 693,504?

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 693,504

693,504
Factor Arrows
2346,752
Factor Arrows
2173,376
Factor Arrows
286,688
Factor Arrows
243,344
Factor Arrows
221,672
Factor Arrows
210,836
Factor Arrows
25,418
Factor Arrows
22,709
Factor Arrows
3903
Factor Arrows
3301
Factor Arrows
743

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, 43

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 43 = 693,504

This can also be written as 28 x 32 x 71 x 431 = 693,504

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


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