Q: What are the prime factors of the number 2,123,568?

 A: 2, 3, 14747

Why are those the prime factors of the number 2,123,568?

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 2,123,568

2,123,568
Factor Arrows
21,061,784
Factor Arrows
2530,892
Factor Arrows
2265,446
Factor Arrows
2132,723
Factor Arrows
344,241
Factor Arrows
314,747

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, 14747

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 14,747 = 2,123,568

This can also be written as 24 x 32 x 14,7471 = 2,123,568

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


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