Q: What are the prime factors of the number 2,746,744?

 A: 2, 7, 11, 13

Why are those the prime factors of the number 2,746,744?

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 2,746,744

2,746,744
Factor Arrows
21,373,372
Factor Arrows
2686,686
Factor Arrows
2343,343
Factor Arrows
749,049
Factor Arrows
77,007
Factor Arrows
71,001
Factor Arrows
7143
Factor Arrows
1113

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, 11, 13

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 7 x 7 x 7 x 11 x 13 = 2,746,744

This can also be written as 23 x 74 x 111 x 131 = 2,746,744

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


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