Q: What are the prime factors of the number 24,542,336?

 A: 2, 7, 13, 43

Why are those the prime factors of the number 24,542,336?

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 24,542,336

24,542,336
Factor Arrows
212,271,168
Factor Arrows
26,135,584
Factor Arrows
23,067,792
Factor Arrows
21,533,896
Factor Arrows
2766,948
Factor Arrows
2383,474
Factor Arrows
2191,737
Factor Arrows
727,391
Factor Arrows
73,913
Factor Arrows
7559
Factor Arrows
1343

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, 7, 13, 43

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 7 x 7 x 7 x 13 x 43 = 24,542,336

This can also be written as 27 x 73 x 131 x 431 = 24,542,336

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


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