Q: What are the prime factors of the number 2,803,980?

 A: 2, 3, 5, 17, 2749

Why are those the prime factors of the number 2,803,980?

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 2,803,980

2,803,980
Factor Arrows
21,401,990
Factor Arrows
2700,995
Factor Arrows
3233,665
Factor Arrows
546,733
Factor Arrows
172,749

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, 17, 2749

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 17 x 2,749 = 2,803,980

This can also be written as 22 x 31 x 51 x 171 x 2,7491 = 2,803,980

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


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