Q: What are the prime factors of the number 812,327,220?

 A: 2, 3, 5, 4512929

Why are those the prime factors of the number 812,327,220?

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 812,327,220

812,327,220
Factor Arrows
2406,163,610
Factor Arrows
2203,081,805
Factor Arrows
367,693,935
Factor Arrows
322,564,645
Factor Arrows
54,512,929

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, 5, 4512929

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 4,512,929 = 812,327,220

This can also be written as 22 x 32 x 51 x 4,512,9291 = 812,327,220

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


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