Q: What are the prime factors of the number 39,679,750?

 A: 2, 5, 11, 47, 307

Why are those the prime factors of the number 39,679,750?

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 39,679,750

39,679,750
Factor Arrows
219,839,875
Factor Arrows
53,967,975
Factor Arrows
5793,595
Factor Arrows
5158,719
Factor Arrows
1114,429
Factor Arrows
47307

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, 5, 11, 47, 307

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 5 x 11 x 47 x 307 = 39,679,750

This can also be written as 21 x 53 x 111 x 471 x 3071 = 39,679,750

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


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