Q: What are the prime factors of the number 197,508,648?

 A: 2, 3, 19, 181, 2393

Why are those the prime factors of the number 197,508,648?

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 197,508,648

197,508,648
Factor Arrows
298,754,324
Factor Arrows
249,377,162
Factor Arrows
224,688,581
Factor Arrows
38,229,527
Factor Arrows
19433,133
Factor Arrows
1812,393

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, 19, 181, 2393

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 19 x 181 x 2,393 = 197,508,648

This can also be written as 23 x 31 x 191 x 1811 x 2,3931 = 197,508,648

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


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