Q: What are the prime factors of the number 40,418,832?

 A: 2, 3, 193, 4363

Why are those the prime factors of the number 40,418,832?

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 40,418,832

40,418,832
Factor Arrows
220,209,416
Factor Arrows
210,104,708
Factor Arrows
25,052,354
Factor Arrows
22,526,177
Factor Arrows
3842,059
Factor Arrows
1934,363

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, 193, 4363

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 193 x 4,363 = 40,418,832

This can also be written as 24 x 31 x 1931 x 4,3631 = 40,418,832

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


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