Q: What are the prime factors of the number 13,010,240?

 A: 2, 5, 109, 373

Why are those the prime factors of the number 13,010,240?

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 13,010,240

13,010,240
Factor Arrows
26,505,120
Factor Arrows
23,252,560
Factor Arrows
21,626,280
Factor Arrows
2813,140
Factor Arrows
2406,570
Factor Arrows
2203,285
Factor Arrows
540,657
Factor Arrows
109373

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, 109, 373

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 5 x 109 x 373 = 13,010,240

This can also be written as 26 x 51 x 1091 x 3731 = 13,010,240

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


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