Q: What are the prime factors of the number 661,033,116?

 A: 2, 3, 109, 233, 241

Why are those the prime factors of the number 661,033,116?

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 661,033,116

661,033,116
Factor Arrows
2330,516,558
Factor Arrows
2165,258,279
Factor Arrows
355,086,093
Factor Arrows
318,362,031
Factor Arrows
36,120,677
Factor Arrows
10956,153
Factor Arrows
233241

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, 109, 233, 241

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 109 x 233 x 241 = 661,033,116

This can also be written as 22 x 33 x 1091 x 2331 x 2411 = 661,033,116

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


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