Q: What are the prime factors of the number 731,544?

 A: 2, 3, 11, 17, 163

Why are those the prime factors of the number 731,544?

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 731,544

731,544
Factor Arrows
2365,772
Factor Arrows
2182,886
Factor Arrows
291,443
Factor Arrows
330,481
Factor Arrows
112,771
Factor Arrows
17163

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, 11, 17, 163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 17 x 163 = 731,544

This can also be written as 23 x 31 x 111 x 171 x 1631 = 731,544

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


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