Q: What are the prime factors of the number 731,333,636?

 A: 2, 11, 19, 61, 14341

Why are those the prime factors of the number 731,333,636?

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 731,333,636

731,333,636
Factor Arrows
2365,666,818
Factor Arrows
2182,833,409
Factor Arrows
1116,621,219
Factor Arrows
19874,801
Factor Arrows
6114,341

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, 19, 61, 14341

We can check our work by multiplying all of the prime factors together: 2 x 2 x 11 x 19 x 61 x 14,341 = 731,333,636

This can also be written as 22 x 111 x 191 x 611 x 14,3411 = 731,333,636

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


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