Q: What are the prime factors of the number 255,333,132?

 A: 2, 3, 17, 421, 991

Why are those the prime factors of the number 255,333,132?

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 255,333,132

255,333,132
Factor Arrows
2127,666,566
Factor Arrows
263,833,283
Factor Arrows
321,277,761
Factor Arrows
37,092,587
Factor Arrows
17417,211
Factor Arrows
421991

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, 17, 421, 991

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 17 x 421 x 991 = 255,333,132

This can also be written as 22 x 32 x 171 x 4211 x 9911 = 255,333,132

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


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