Q: What are the prime factors of the number 3,691,512?

 A: 2, 3, 11, 59, 79

Why are those the prime factors of the number 3,691,512?

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 3,691,512

3,691,512
Factor Arrows
21,845,756
Factor Arrows
2922,878
Factor Arrows
2461,439
Factor Arrows
3153,813
Factor Arrows
351,271
Factor Arrows
114,661
Factor Arrows
5979

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, 59, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 11 x 59 x 79 = 3,691,512

This can also be written as 23 x 32 x 111 x 591 x 791 = 3,691,512

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


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