Q: What are the prime factors of the number 1,881,792?

 A: 2, 3, 11

Why are those the prime factors of the number 1,881,792?

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 1,881,792

1,881,792
Factor Arrows
2940,896
Factor Arrows
2470,448
Factor Arrows
2235,224
Factor Arrows
2117,612
Factor Arrows
258,806
Factor Arrows
229,403
Factor Arrows
39,801
Factor Arrows
33,267
Factor Arrows
31,089
Factor Arrows
3363
Factor Arrows
3121
Factor Arrows
1111

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

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 3 x 3 x 3 x 3 x 3 x 11 x 11 = 1,881,792

This can also be written as 26 x 35 x 112 = 1,881,792

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


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