Q: What are the prime factors of the number 726,746,432?

 A: 2, 349, 32537

Why are those the prime factors of the number 726,746,432?

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 726,746,432

726,746,432
Factor Arrows
2363,373,216
Factor Arrows
2181,686,608
Factor Arrows
290,843,304
Factor Arrows
245,421,652
Factor Arrows
222,710,826
Factor Arrows
211,355,413
Factor Arrows
34932,537

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, 349, 32537

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 349 x 32,537 = 726,746,432

This can also be written as 26 x 3491 x 32,5371 = 726,746,432

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


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