Q: What are the prime factors of the number 723,712,752?

 A: 2, 3, 7, 179, 191

Why are those the prime factors of the number 723,712,752?

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 723,712,752

723,712,752
Factor Arrows
2361,856,376
Factor Arrows
2180,928,188
Factor Arrows
290,464,094
Factor Arrows
245,232,047
Factor Arrows
315,077,349
Factor Arrows
35,025,783
Factor Arrows
31,675,261
Factor Arrows
7239,323
Factor Arrows
734,189
Factor Arrows
179191

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, 7, 179, 191

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 7 x 7 x 179 x 191 = 723,712,752

This can also be written as 24 x 33 x 72 x 1791 x 1911 = 723,712,752

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


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