Q: What are the prime factors of the number 420,112,231?

 A: 7, 11, 111347

Why are those the prime factors of the number 420,112,231?

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 420,112,231

420,112,231
Factor Arrows
760,016,033
Factor Arrows
78,573,719
Factor Arrows
71,224,817
Factor Arrows
11111,347

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:

7, 11, 111347

We can check our work by multiplying all of the prime factors together: 7 x 7 x 7 x 11 x 111,347 = 420,112,231

This can also be written as 73 x 111 x 111,3471 = 420,112,231

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


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