Q: What are the prime factors of the number 13,098,880?

 A: 2, 5, 97, 211

Why are those the prime factors of the number 13,098,880?

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 13,098,880

13,098,880
Factor Arrows
26,549,440
Factor Arrows
23,274,720
Factor Arrows
21,637,360
Factor Arrows
2818,680
Factor Arrows
2409,340
Factor Arrows
2204,670
Factor Arrows
2102,335
Factor Arrows
520,467
Factor Arrows
97211

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, 97, 211

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 2 x 5 x 97 x 211 = 13,098,880

This can also be written as 27 x 51 x 971 x 2111 = 13,098,880

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


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