Q: What are the prime factors of the number 219,436?

 A: 2, 7, 17, 461

Why are those the prime factors of the number 219,436?

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 219,436

219,436
Factor Arrows
2109,718
Factor Arrows
254,859
Factor Arrows
77,837
Factor Arrows
17461

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, 7, 17, 461

We can check our work by multiplying all of the prime factors together: 2 x 2 x 7 x 17 x 461 = 219,436

This can also be written as 22 x 71 x 171 x 4611 = 219,436

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


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