Q: What are the prime factors of the number 355,125,655?

 A: 5, 47, 73, 127, 163

Why are those the prime factors of the number 355,125,655?

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 355,125,655

355,125,655
Factor Arrows
571,025,131
Factor Arrows
471,511,173
Factor Arrows
7320,701
Factor Arrows
127163

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, 47, 73, 127, 163

We can check our work by multiplying all of the prime factors together: 5 x 47 x 73 x 127 x 163 = 355,125,655

This can also be written as 51 x 471 x 731 x 1271 x 1631 = 355,125,655

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


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