Q: What are the prime factors of the number 40,347,264?

 A: 2, 3, 105071

Why are those the prime factors of the number 40,347,264?

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 40,347,264

40,347,264
Factor Arrows
220,173,632
Factor Arrows
210,086,816
Factor Arrows
25,043,408
Factor Arrows
22,521,704
Factor Arrows
21,260,852
Factor Arrows
2630,426
Factor Arrows
2315,213
Factor Arrows
3105,071

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, 105071

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 2 x 3 x 105,071 = 40,347,264

This can also be written as 27 x 31 x 105,0711 = 40,347,264

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


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