Q: What are the prime factors of the number 203,133,128?

 A: 2, 11, 233, 9907

Why are those the prime factors of the number 203,133,128?

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 203,133,128

203,133,128
Factor Arrows
2101,566,564
Factor Arrows
250,783,282
Factor Arrows
225,391,641
Factor Arrows
112,308,331
Factor Arrows
2339,907

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, 11, 233, 9907

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 233 x 9,907 = 203,133,128

This can also be written as 23 x 111 x 2331 x 9,9071 = 203,133,128

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


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