Q: What are the prime factors of the number 136,384,512?

 A: 2, 3, 11, 1009

Why are those the prime factors of the number 136,384,512?

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 136,384,512

136,384,512
Factor Arrows
268,192,256
Factor Arrows
234,096,128
Factor Arrows
217,048,064
Factor Arrows
28,524,032
Factor Arrows
24,262,016
Factor Arrows
22,131,008
Factor Arrows
21,065,504
Factor Arrows
2532,752
Factor Arrows
2266,376
Factor Arrows
2133,188
Factor Arrows
266,594
Factor Arrows
233,297
Factor Arrows
311,099
Factor Arrows
111,009

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, 1009

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 2 x 2 x 2 x 2 x 3 x 11 x 1,009 = 136,384,512

This can also be written as 212 x 31 x 111 x 1,0091 = 136,384,512

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


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