Q: What are the prime factors of the number 693,720?

 A: 2, 3, 5, 41, 47

Why are those the prime factors of the number 693,720?

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 693,720

693,720
Factor Arrows
2346,860
Factor Arrows
2173,430
Factor Arrows
286,715
Factor Arrows
328,905
Factor Arrows
39,635
Factor Arrows
51,927
Factor Arrows
4147

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, 5, 41, 47

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 41 x 47 = 693,720

This can also be written as 23 x 32 x 51 x 411 x 471 = 693,720

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


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