Q: What are the prime factors of the number 156,222?

 A: 2, 3, 11, 263

Why are those the prime factors of the number 156,222?

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 156,222

156,222
Factor Arrows
278,111
Factor Arrows
326,037
Factor Arrows
38,679
Factor Arrows
32,893
Factor Arrows
11263

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, 11, 263

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 11 x 263 = 156,222

This can also be written as 21 x 33 x 111 x 2631 = 156,222

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


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