Q: What are the prime factors of the number 42,772,464?

 A: 2, 3, 7, 42433

Why are those the prime factors of the number 42,772,464?

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 42,772,464

42,772,464
Factor Arrows
221,386,232
Factor Arrows
210,693,116
Factor Arrows
25,346,558
Factor Arrows
22,673,279
Factor Arrows
3891,093
Factor Arrows
3297,031
Factor Arrows
742,433

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, 7, 42433

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 7 x 42,433 = 42,772,464

This can also be written as 24 x 32 x 71 x 42,4331 = 42,772,464

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


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