Q: What are the prime factors of the number 89,195,904?

 A: 2, 3, 7, 1229

Why are those the prime factors of the number 89,195,904?

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 89,195,904

89,195,904
Factor Arrows
244,597,952
Factor Arrows
222,298,976
Factor Arrows
211,149,488
Factor Arrows
25,574,744
Factor Arrows
22,787,372
Factor Arrows
21,393,686
Factor Arrows
2696,843
Factor Arrows
3232,281
Factor Arrows
377,427
Factor Arrows
325,809
Factor Arrows
38,603
Factor Arrows
71,229

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, 7, 1229

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 3 x 3 x 3 x 3 x 7 x 1,229 = 89,195,904

This can also be written as 27 x 34 x 71 x 1,2291 = 89,195,904

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


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