Q: What are the prime factors of the number 196,512?

 A: 2, 3, 23, 89

Why are those the prime factors of the number 196,512?

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 196,512

196,512
Factor Arrows
298,256
Factor Arrows
249,128
Factor Arrows
224,564
Factor Arrows
212,282
Factor Arrows
26,141
Factor Arrows
32,047
Factor Arrows
2389

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, 23, 89

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 23 x 89 = 196,512

This can also be written as 25 x 31 x 231 x 891 = 196,512

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


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