Q: What are the prime factors of the number 11,870,748?

 A: 2, 3, 199, 1657

Why are those the prime factors of the number 11,870,748?

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 11,870,748

11,870,748
Factor Arrows
25,935,374
Factor Arrows
22,967,687
Factor Arrows
3989,229
Factor Arrows
3329,743
Factor Arrows
1991,657

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, 199, 1657

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 199 x 1,657 = 11,870,748

This can also be written as 22 x 32 x 1991 x 1,6571 = 11,870,748

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


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