Q: What are the prime factors of the number 1,318,832?

 A: 2, 139, 593

Why are those the prime factors of the number 1,318,832?

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 1,318,832

1,318,832
Factor Arrows
2659,416
Factor Arrows
2329,708
Factor Arrows
2164,854
Factor Arrows
282,427
Factor Arrows
139593

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, 139, 593

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 139 x 593 = 1,318,832

This can also be written as 24 x 1391 x 5931 = 1,318,832

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


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