Q: What are the prime factors of the number 2,102,528?

 A: 2, 43, 191

Why are those the prime factors of the number 2,102,528?

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 2,102,528

2,102,528
Factor Arrows
21,051,264
Factor Arrows
2525,632
Factor Arrows
2262,816
Factor Arrows
2131,408
Factor Arrows
265,704
Factor Arrows
232,852
Factor Arrows
216,426
Factor Arrows
28,213
Factor Arrows
43191

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, 43, 191

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 2 x 2 x 43 x 191 = 2,102,528

This can also be written as 28 x 431 x 1911 = 2,102,528

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


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