Q: What are the prime factors of the number 61,072?

 A: 2, 11, 347

Why are those the prime factors of the number 61,072?

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 61,072

61,072
Factor Arrows
230,536
Factor Arrows
215,268
Factor Arrows
27,634
Factor Arrows
23,817
Factor Arrows
11347

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, 11, 347

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 11 x 347 = 61,072

This can also be written as 24 x 111 x 3471 = 61,072

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


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