Q: What are the prime factors of the number 13,563,056?

 A: 2, 13, 197, 331

Why are those the prime factors of the number 13,563,056?

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 13,563,056

13,563,056
Factor Arrows
26,781,528
Factor Arrows
23,390,764
Factor Arrows
21,695,382
Factor Arrows
2847,691
Factor Arrows
1365,207
Factor Arrows
197331

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, 13, 197, 331

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 197 x 331 = 13,563,056

This can also be written as 24 x 131 x 1971 x 3311 = 13,563,056

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


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