Q: What are the prime factors of the number 16,445,968?

 A: 2, 7, 11, 1907

Why are those the prime factors of the number 16,445,968?

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 16,445,968

16,445,968
Factor Arrows
28,222,984
Factor Arrows
24,111,492
Factor Arrows
22,055,746
Factor Arrows
21,027,873
Factor Arrows
7146,839
Factor Arrows
720,977
Factor Arrows
111,907

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, 7, 11, 1907

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 7 x 11 x 1,907 = 16,445,968

This can also be written as 24 x 72 x 111 x 1,9071 = 16,445,968

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


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