Q: What are the prime factors of the number 422,131,512?

 A: 2, 3, 11, 19, 23, 3659

Why are those the prime factors of the number 422,131,512?

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 422,131,512

422,131,512
Factor Arrows
2211,065,756
Factor Arrows
2105,532,878
Factor Arrows
252,766,439
Factor Arrows
317,588,813
Factor Arrows
111,598,983
Factor Arrows
1984,157
Factor Arrows
233,659

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, 11, 19, 23, 3659

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 11 x 19 x 23 x 3,659 = 422,131,512

This can also be written as 23 x 31 x 111 x 191 x 231 x 3,6591 = 422,131,512

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


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