Q: What are the prime factors of the number 3,102,528?

 A: 2, 3, 11, 13, 113

Why are those the prime factors of the number 3,102,528?

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 3,102,528

3,102,528
Factor Arrows
21,551,264
Factor Arrows
2775,632
Factor Arrows
2387,816
Factor Arrows
2193,908
Factor Arrows
296,954
Factor Arrows
248,477
Factor Arrows
316,159
Factor Arrows
111,469
Factor Arrows
13113

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, 11, 13, 113

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 11 x 13 x 113 = 3,102,528

This can also be written as 26 x 31 x 111 x 131 x 1131 = 3,102,528

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


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