Q: What are the prime factors of the number 122,587,500?

 A: 2, 3, 5, 7, 467

Why are those the prime factors of the number 122,587,500?

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 122,587,500

122,587,500
Factor Arrows
261,293,750
Factor Arrows
230,646,875
Factor Arrows
310,215,625
Factor Arrows
52,043,125
Factor Arrows
5408,625
Factor Arrows
581,725
Factor Arrows
516,345
Factor Arrows
53,269
Factor Arrows
7467

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, 5, 7, 467

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 5 x 5 x 5 x 7 x 467 = 122,587,500

This can also be written as 22 x 31 x 55 x 71 x 4671 = 122,587,500

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


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