Q: What are the prime factors of the number 140,880?

 A: 2, 3, 5, 587

Why are those the prime factors of the number 140,880?

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 140,880

140,880
Factor Arrows
270,440
Factor Arrows
235,220
Factor Arrows
217,610
Factor Arrows
28,805
Factor Arrows
32,935
Factor Arrows
5587

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, 587

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 587 = 140,880

This can also be written as 24 x 31 x 51 x 5871 = 140,880

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


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