Q: What are the prime factors of the number 40,822,464?

 A: 2, 3, 173, 1229

Why are those the prime factors of the number 40,822,464?

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 40,822,464

40,822,464
Factor Arrows
220,411,232
Factor Arrows
210,205,616
Factor Arrows
25,102,808
Factor Arrows
22,551,404
Factor Arrows
21,275,702
Factor Arrows
2637,851
Factor Arrows
3212,617
Factor Arrows
1731,229

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, 173, 1229

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 173 x 1,229 = 40,822,464

This can also be written as 26 x 31 x 1731 x 1,2291 = 40,822,464

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


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