Q: What are the prime factors of the number 197,112,672?

 A: 2, 3, 684419

Why are those the prime factors of the number 197,112,672?

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 197,112,672

197,112,672
Factor Arrows
298,556,336
Factor Arrows
249,278,168
Factor Arrows
224,639,084
Factor Arrows
212,319,542
Factor Arrows
26,159,771
Factor Arrows
32,053,257
Factor Arrows
3684,419

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, 684419

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 3 x 684,419 = 197,112,672

This can also be written as 25 x 32 x 684,4191 = 197,112,672

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


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