Q: What are the prime factors of the number 724,472?

 A: 2, 7, 17, 761

Why are those the prime factors of the number 724,472?

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 724,472

724,472
Factor Arrows
2362,236
Factor Arrows
2181,118
Factor Arrows
290,559
Factor Arrows
712,937
Factor Arrows
17761

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, 7, 17, 761

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 17 x 761 = 724,472

This can also be written as 23 x 71 x 171 x 7611 = 724,472

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


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