Q: What are the prime factors of the number 2,356,992?

 A: 2, 3, 11, 31

Why are those the prime factors of the number 2,356,992?

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 2,356,992

2,356,992
Factor Arrows
21,178,496
Factor Arrows
2589,248
Factor Arrows
2294,624
Factor Arrows
2147,312
Factor Arrows
273,656
Factor Arrows
236,828
Factor Arrows
218,414
Factor Arrows
29,207
Factor Arrows
33,069
Factor Arrows
31,023
Factor Arrows
3341
Factor Arrows
1131

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, 11, 31

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 2 x 3 x 3 x 3 x 11 x 31 = 2,356,992

This can also be written as 28 x 33 x 111 x 311 = 2,356,992

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


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