Q: What are the prime factors of the number 146,166,400?

 A: 2, 5, 45677

Why are those the prime factors of the number 146,166,400?

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 146,166,400

146,166,400
Factor Arrows
273,083,200
Factor Arrows
236,541,600
Factor Arrows
218,270,800
Factor Arrows
29,135,400
Factor Arrows
24,567,700
Factor Arrows
22,283,850
Factor Arrows
21,141,925
Factor Arrows
5228,385
Factor Arrows
545,677

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, 45677

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 5 x 5 x 45,677 = 146,166,400

This can also be written as 27 x 52 x 45,6771 = 146,166,400

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


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