Q: What are the prime factors of the number 195,872?

 A: 2, 6121

Why are those the prime factors of the number 195,872?

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 195,872

195,872
Factor Arrows
297,936
Factor Arrows
248,968
Factor Arrows
224,484
Factor Arrows
212,242
Factor Arrows
26,121

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, 6121

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 6,121 = 195,872

This can also be written as 25 x 6,1211 = 195,872

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


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