Q: What are the prime factors of the number 980,720?

 A: 2, 5, 13, 23, 41

Why are those the prime factors of the number 980,720?

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 980,720

980,720
Factor Arrows
2490,360
Factor Arrows
2245,180
Factor Arrows
2122,590
Factor Arrows
261,295
Factor Arrows
512,259
Factor Arrows
13943
Factor Arrows
2341

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, 5, 13, 23, 41

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 13 x 23 x 41 = 980,720

This can also be written as 24 x 51 x 131 x 231 x 411 = 980,720

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


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