Q: What are the prime factors of the number 840,096?

 A: 2, 3, 2917

Why are those the prime factors of the number 840,096?

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 840,096

840,096
Factor Arrows
2420,048
Factor Arrows
2210,024
Factor Arrows
2105,012
Factor Arrows
252,506
Factor Arrows
226,253
Factor Arrows
38,751
Factor Arrows
32,917

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, 2917

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 3 x 2,917 = 840,096

This can also be written as 25 x 32 x 2,9171 = 840,096

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


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