Q: What are the prime factors of the number 40,786,815?

 A: 3, 5, 2719121

Why are those the prime factors of the number 40,786,815?

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 40,786,815

40,786,815
Factor Arrows
313,595,605
Factor Arrows
52,719,121

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:

3, 5, 2719121

We can check our work by multiplying all of the prime factors together: 3 x 5 x 2,719,121 = 40,786,815

This can also be written as 31 x 51 x 2,719,1211 = 40,786,815

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


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