Q: What are the prime factors of the number 49,493,664?

 A: 2, 3, 11, 17, 919

Why are those the prime factors of the number 49,493,664?

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 49,493,664

49,493,664
Factor Arrows
224,746,832
Factor Arrows
212,373,416
Factor Arrows
26,186,708
Factor Arrows
23,093,354
Factor Arrows
21,546,677
Factor Arrows
3515,559
Factor Arrows
3171,853
Factor Arrows
1115,623
Factor Arrows
17919

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, 11, 17, 919

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 11 x 17 x 919 = 49,493,664

This can also be written as 25 x 32 x 111 x 171 x 9191 = 49,493,664

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


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