Q: What are the prime factors of the number 1,397,688?

 A: 2, 3, 58237

Why are those the prime factors of the number 1,397,688?

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 1,397,688

1,397,688
Factor Arrows
2698,844
Factor Arrows
2349,422
Factor Arrows
2174,711
Factor Arrows
358,237

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, 58237

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 58,237 = 1,397,688

This can also be written as 23 x 31 x 58,2371 = 1,397,688

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


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