Q: What are the prime factors of the number 146,068,224?

 A: 2, 3, 89, 2137

Why are those the prime factors of the number 146,068,224?

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 146,068,224

146,068,224
Factor Arrows
273,034,112
Factor Arrows
236,517,056
Factor Arrows
218,258,528
Factor Arrows
29,129,264
Factor Arrows
24,564,632
Factor Arrows
22,282,316
Factor Arrows
21,141,158
Factor Arrows
2570,579
Factor Arrows
3190,193
Factor Arrows
892,137

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, 89, 2137

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 2 x 3 x 89 x 2,137 = 146,068,224

This can also be written as 28 x 31 x 891 x 2,1371 = 146,068,224

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


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