Q: What are the prime factors of the number 23,726,080?

 A: 2, 5, 7, 331

Why are those the prime factors of the number 23,726,080?

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 23,726,080

23,726,080
Factor Arrows
211,863,040
Factor Arrows
25,931,520
Factor Arrows
22,965,760
Factor Arrows
21,482,880
Factor Arrows
2741,440
Factor Arrows
2370,720
Factor Arrows
2185,360
Factor Arrows
292,680
Factor Arrows
246,340
Factor Arrows
223,170
Factor Arrows
211,585
Factor Arrows
52,317
Factor Arrows
7331

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, 5, 7, 331

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 2 x 2 x 2 x 5 x 7 x 331 = 23,726,080

This can also be written as 211 x 51 x 71 x 3311 = 23,726,080

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


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