Q: What are the prime factors of the number 13,611,585?

 A: 3, 5, 13, 29, 83

Why are those the prime factors of the number 13,611,585?

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 13,611,585

13,611,585
Factor Arrows
34,537,195
Factor Arrows
5907,439
Factor Arrows
1369,803
Factor Arrows
292,407
Factor Arrows
2983

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:

3, 5, 13, 29, 83

We can check our work by multiplying all of the prime factors together: 3 x 5 x 13 x 29 x 29 x 83 = 13,611,585

This can also be written as 31 x 51 x 131 x 292 x 831 = 13,611,585

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


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