Q: What are the prime factors of the number 133,111,338?

 A: 2, 3, 41, 191, 2833

Why are those the prime factors of the number 133,111,338?

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 133,111,338

133,111,338
Factor Arrows
266,555,669
Factor Arrows
322,185,223
Factor Arrows
41541,103
Factor Arrows
1912,833

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, 41, 191, 2833

We can check our work by multiplying all of the prime factors together: 2 x 3 x 41 x 191 x 2,833 = 133,111,338

This can also be written as 21 x 31 x 411 x 1911 x 2,8331 = 133,111,338

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


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