Q: What are the prime factors of the number 747,968?

 A: 2, 13, 29, 31

Why are those the prime factors of the number 747,968?

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 747,968

747,968
Factor Arrows
2373,984
Factor Arrows
2186,992
Factor Arrows
293,496
Factor Arrows
246,748
Factor Arrows
223,374
Factor Arrows
211,687
Factor Arrows
13899
Factor Arrows
2931

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, 13, 29, 31

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 13 x 29 x 31 = 747,968

This can also be written as 26 x 131 x 291 x 311 = 747,968

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


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