Q: What are the prime factors of the number 247,416?

 A: 2, 3, 13, 61

Why are those the prime factors of the number 247,416?

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 247,416

247,416
Factor Arrows
2123,708
Factor Arrows
261,854
Factor Arrows
230,927
Factor Arrows
310,309
Factor Arrows
13793
Factor Arrows
1361

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, 3, 13, 61

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 13 x 13 x 61 = 247,416

This can also be written as 23 x 31 x 132 x 611 = 247,416

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


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