Q: What are the prime factors of the number 2,640,056?

 A: 2, 331, 997

Why are those the prime factors of the number 2,640,056?

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 2,640,056

2,640,056
Factor Arrows
21,320,028
Factor Arrows
2660,014
Factor Arrows
2330,007
Factor Arrows
331997

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, 331, 997

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 331 x 997 = 2,640,056

This can also be written as 23 x 3311 x 9971 = 2,640,056

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


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