Q: What are the prime factors of the number 40,524,928?

 A: 2, 73, 4337

Why are those the prime factors of the number 40,524,928?

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 40,524,928

40,524,928
Factor Arrows
220,262,464
Factor Arrows
210,131,232
Factor Arrows
25,065,616
Factor Arrows
22,532,808
Factor Arrows
21,266,404
Factor Arrows
2633,202
Factor Arrows
2316,601
Factor Arrows
734,337

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, 73, 4337

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 73 x 4,337 = 40,524,928

This can also be written as 27 x 731 x 4,3371 = 40,524,928

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


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