Q: What are the prime factors of the number 2,920,064?

 A: 2, 7, 3259

Why are those the prime factors of the number 2,920,064?

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 2,920,064

2,920,064
Factor Arrows
21,460,032
Factor Arrows
2730,016
Factor Arrows
2365,008
Factor Arrows
2182,504
Factor Arrows
291,252
Factor Arrows
245,626
Factor Arrows
222,813
Factor Arrows
73,259

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, 7, 3259

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 7 x 3,259 = 2,920,064

This can also be written as 27 x 71 x 3,2591 = 2,920,064

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


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