Q: What are the prime factors of the number 22,678,336?

 A: 2, 37, 61, 157

Why are those the prime factors of the number 22,678,336?

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 22,678,336

22,678,336
Factor Arrows
211,339,168
Factor Arrows
25,669,584
Factor Arrows
22,834,792
Factor Arrows
21,417,396
Factor Arrows
2708,698
Factor Arrows
2354,349
Factor Arrows
379,577
Factor Arrows
61157

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, 37, 61, 157

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 37 x 61 x 157 = 22,678,336

This can also be written as 26 x 371 x 611 x 1571 = 22,678,336

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


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