Q: What are the prime factors of the number 219,051?

 A: 3, 7, 19, 61

Why are those the prime factors of the number 219,051?

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 219,051

219,051
Factor Arrows
373,017
Factor Arrows
324,339
Factor Arrows
38,113
Factor Arrows
71,159
Factor Arrows
1961

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, 7, 19, 61

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 7 x 19 x 61 = 219,051

This can also be written as 33 x 71 x 191 x 611 = 219,051

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


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