Q: What are the prime factors of the number 220,155,066?

 A: 2, 3, 17, 29, 24809

Why are those the prime factors of the number 220,155,066?

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 220,155,066

220,155,066
Factor Arrows
2110,077,533
Factor Arrows
336,692,511
Factor Arrows
312,230,837
Factor Arrows
17719,461
Factor Arrows
2924,809

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, 17, 29, 24809

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 17 x 29 x 24,809 = 220,155,066

This can also be written as 21 x 32 x 171 x 291 x 24,8091 = 220,155,066

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


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