Q: What are the prime factors of the number 2,198,688?

 A: 2, 3, 37, 619

Why are those the prime factors of the number 2,198,688?

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 2,198,688

2,198,688
Factor Arrows
21,099,344
Factor Arrows
2549,672
Factor Arrows
2274,836
Factor Arrows
2137,418
Factor Arrows
268,709
Factor Arrows
322,903
Factor Arrows
37619

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, 37, 619

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 37 x 619 = 2,198,688

This can also be written as 25 x 31 x 371 x 6191 = 2,198,688

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


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