Q: What are the prime factors of the number 196,720?

 A: 2, 5, 2459

Why are those the prime factors of the number 196,720?

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 196,720

196,720
Factor Arrows
298,360
Factor Arrows
249,180
Factor Arrows
224,590
Factor Arrows
212,295
Factor Arrows
52,459

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, 5, 2459

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 2,459 = 196,720

This can also be written as 24 x 51 x 2,4591 = 196,720

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


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