Q: What are the prime factors of the number 2,794,680?

 A: 2, 3, 5, 7, 1109

Why are those the prime factors of the number 2,794,680?

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 2,794,680

2,794,680
Factor Arrows
21,397,340
Factor Arrows
2698,670
Factor Arrows
2349,335
Factor Arrows
3116,445
Factor Arrows
338,815
Factor Arrows
57,763
Factor Arrows
71,109

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, 5, 7, 1109

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 7 x 1,109 = 2,794,680

This can also be written as 23 x 32 x 51 x 71 x 1,1091 = 2,794,680

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


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