Q: What are the prime factors of the number 28,361,949?

 A: 3, 7, 11, 59, 2081

Why are those the prime factors of the number 28,361,949?

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 28,361,949

28,361,949
Factor Arrows
39,453,983
Factor Arrows
71,350,569
Factor Arrows
11122,779
Factor Arrows
592,081

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:

3, 7, 11, 59, 2081

We can check our work by multiplying all of the prime factors together: 3 x 7 x 11 x 59 x 2,081 = 28,361,949

This can also be written as 31 x 71 x 111 x 591 x 2,0811 = 28,361,949

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


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