Q: What are the prime factors of the number 656,944?

 A: 2, 19, 2161

Why are those the prime factors of the number 656,944?

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 656,944

656,944
Factor Arrows
2328,472
Factor Arrows
2164,236
Factor Arrows
282,118
Factor Arrows
241,059
Factor Arrows
192,161

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, 19, 2161

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 19 x 2,161 = 656,944

This can also be written as 24 x 191 x 2,1611 = 656,944

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


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