Q: What are the prime factors of the number 16,671,228?

 A: 2, 3, 7, 23, 8629

Why are those the prime factors of the number 16,671,228?

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 16,671,228

16,671,228
Factor Arrows
28,335,614
Factor Arrows
24,167,807
Factor Arrows
31,389,269
Factor Arrows
7198,467
Factor Arrows
238,629

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, 23, 8629

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 23 x 8,629 = 16,671,228

This can also be written as 22 x 31 x 71 x 231 x 8,6291 = 16,671,228

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


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