Q: What are the prime factors of the number 133,343,232?

 A: 2, 3, 11, 1973

Why are those the prime factors of the number 133,343,232?

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 133,343,232

133,343,232
Factor Arrows
266,671,616
Factor Arrows
233,335,808
Factor Arrows
216,667,904
Factor Arrows
28,333,952
Factor Arrows
24,166,976
Factor Arrows
22,083,488
Factor Arrows
21,041,744
Factor Arrows
2520,872
Factor Arrows
2260,436
Factor Arrows
2130,218
Factor Arrows
265,109
Factor Arrows
321,703
Factor Arrows
111,973

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, 1973

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 3 x 11 x 1,973 = 133,343,232

This can also be written as 211 x 31 x 111 x 1,9731 = 133,343,232

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


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