Q: What are the prime factors of the number 900,108?

 A: 2, 3, 11, 2273

Why are those the prime factors of the number 900,108?

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 900,108

900,108
Factor Arrows
2450,054
Factor Arrows
2225,027
Factor Arrows
375,009
Factor Arrows
325,003
Factor Arrows
112,273

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, 2273

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 2,273 = 900,108

This can also be written as 22 x 32 x 111 x 2,2731 = 900,108

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


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