Q: What are the prime factors of the number 2,974,704?

 A: 2, 3, 29, 2137

Why are those the prime factors of the number 2,974,704?

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 2,974,704

2,974,704
Factor Arrows
21,487,352
Factor Arrows
2743,676
Factor Arrows
2371,838
Factor Arrows
2185,919
Factor Arrows
361,973
Factor Arrows
292,137

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, 29, 2137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 29 x 2,137 = 2,974,704

This can also be written as 24 x 31 x 291 x 2,1371 = 2,974,704

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


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