Q: What are the prime factors of the number 747,660,625?

 A: 5, 41, 163, 179

Why are those the prime factors of the number 747,660,625?

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 747,660,625

747,660,625
Factor Arrows
5149,532,125
Factor Arrows
529,906,425
Factor Arrows
55,981,285
Factor Arrows
51,196,257
Factor Arrows
4129,177
Factor Arrows
163179

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:

5, 41, 163, 179

We can check our work by multiplying all of the prime factors together: 5 x 5 x 5 x 5 x 41 x 163 x 179 = 747,660,625

This can also be written as 54 x 411 x 1631 x 1791 = 747,660,625

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


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