Q: What are the prime factors of the number 731,317,648?

 A: 2, 83, 550691

Why are those the prime factors of the number 731,317,648?

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 731,317,648

731,317,648
Factor Arrows
2365,658,824
Factor Arrows
2182,829,412
Factor Arrows
291,414,706
Factor Arrows
245,707,353
Factor Arrows
83550,691

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, 83, 550691

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 83 x 550,691 = 731,317,648

This can also be written as 24 x 831 x 550,6911 = 731,317,648

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


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