Q: What are the prime factors of the number 220,202,115?

 A: 3, 5, 7, 19, 23, 4799

Why are those the prime factors of the number 220,202,115?

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 220,202,115

220,202,115
Factor Arrows
373,400,705
Factor Arrows
514,680,141
Factor Arrows
72,097,163
Factor Arrows
19110,377
Factor Arrows
234,799

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:

3, 5, 7, 19, 23, 4799

We can check our work by multiplying all of the prime factors together: 3 x 5 x 7 x 19 x 23 x 4,799 = 220,202,115

This can also be written as 31 x 51 x 71 x 191 x 231 x 4,7991 = 220,202,115

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


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