Q: What are the prime factors of the number 731,104?

 A: 2, 11, 31, 67

Why are those the prime factors of the number 731,104?

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 731,104

731,104
Factor Arrows
2365,552
Factor Arrows
2182,776
Factor Arrows
291,388
Factor Arrows
245,694
Factor Arrows
222,847
Factor Arrows
112,077
Factor Arrows
3167

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, 11, 31, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 31 x 67 = 731,104

This can also be written as 25 x 111 x 311 x 671 = 731,104

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


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