Q: What are the prime factors of the number 100,254,550?

 A: 2, 5, 11, 73, 227

Why are those the prime factors of the number 100,254,550?

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 100,254,550

100,254,550
Factor Arrows
250,127,275
Factor Arrows
510,025,455
Factor Arrows
52,005,091
Factor Arrows
11182,281
Factor Arrows
1116,571
Factor Arrows
73227

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, 5, 11, 73, 227

We can check our work by multiplying all of the prime factors together: 2 x 5 x 5 x 11 x 11 x 73 x 227 = 100,254,550

This can also be written as 21 x 52 x 112 x 731 x 2271 = 100,254,550

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


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