Q: What are the prime factors of the number 270,144?

 A: 2, 3, 7, 67

Why are those the prime factors of the number 270,144?

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 270,144

270,144
Factor Arrows
2135,072
Factor Arrows
267,536
Factor Arrows
233,768
Factor Arrows
216,884
Factor Arrows
28,442
Factor Arrows
24,221
Factor Arrows
31,407
Factor Arrows
3469
Factor Arrows
767

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, 7, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 7 x 67 = 270,144

This can also be written as 26 x 32 x 71 x 671 = 270,144

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


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