Q: What are the prime factors of the number 196,991,472?

 A: 2, 3, 241, 17029

Why are those the prime factors of the number 196,991,472?

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 196,991,472

196,991,472
Factor Arrows
298,495,736
Factor Arrows
249,247,868
Factor Arrows
224,623,934
Factor Arrows
212,311,967
Factor Arrows
34,103,989
Factor Arrows
24117,029

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, 241, 17029

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 241 x 17,029 = 196,991,472

This can also be written as 24 x 31 x 2411 x 17,0291 = 196,991,472

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


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