Q: What are the prime factors of the number 22,796,160?

 A: 2, 3, 5, 31, 383

Why are those the prime factors of the number 22,796,160?

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 22,796,160

22,796,160
Factor Arrows
211,398,080
Factor Arrows
25,699,040
Factor Arrows
22,849,520
Factor Arrows
21,424,760
Factor Arrows
2712,380
Factor Arrows
2356,190
Factor Arrows
2178,095
Factor Arrows
359,365
Factor Arrows
511,873
Factor Arrows
31383

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, 5, 31, 383

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 3 x 5 x 31 x 383 = 22,796,160

This can also be written as 27 x 31 x 51 x 311 x 3831 = 22,796,160

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


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