Q: What are the prime factors of the number 40,008,696?

 A: 2, 3, 7, 13, 2617

Why are those the prime factors of the number 40,008,696?

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 40,008,696

40,008,696
Factor Arrows
220,004,348
Factor Arrows
210,002,174
Factor Arrows
25,001,087
Factor Arrows
31,667,029
Factor Arrows
7238,147
Factor Arrows
734,021
Factor Arrows
132,617

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, 7, 13, 2617

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 7 x 13 x 2,617 = 40,008,696

This can also be written as 23 x 31 x 72 x 131 x 2,6171 = 40,008,696

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


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