Q: What are the prime factors of the number 135,360?

 A: 2, 3, 5, 47

Why are those the prime factors of the number 135,360?

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 135,360

135,360
Factor Arrows
267,680
Factor Arrows
233,840
Factor Arrows
216,920
Factor Arrows
28,460
Factor Arrows
24,230
Factor Arrows
22,115
Factor Arrows
3705
Factor Arrows
3235
Factor Arrows
547

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, 5, 47

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 5 x 47 = 135,360

This can also be written as 26 x 32 x 51 x 471 = 135,360

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


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