Q: What are the prime factors of the number 133,132,032?

 A: 2, 3, 11, 17, 103

Why are those the prime factors of the number 133,132,032?

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 133,132,032

133,132,032
Factor Arrows
266,566,016
Factor Arrows
233,283,008
Factor Arrows
216,641,504
Factor Arrows
28,320,752
Factor Arrows
24,160,376
Factor Arrows
22,080,188
Factor Arrows
21,040,094
Factor Arrows
2520,047
Factor Arrows
3173,349
Factor Arrows
357,783
Factor Arrows
319,261
Factor Arrows
111,751
Factor Arrows
17103

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, 11, 17, 103

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 11 x 17 x 103 = 133,132,032

This can also be written as 28 x 33 x 111 x 171 x 1031 = 133,132,032

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


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