Q: What are the prime factors of the number 46,666,144?

 A: 2, 7, 181, 1151

Why are those the prime factors of the number 46,666,144?

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 46,666,144

46,666,144
Factor Arrows
223,333,072
Factor Arrows
211,666,536
Factor Arrows
25,833,268
Factor Arrows
22,916,634
Factor Arrows
21,458,317
Factor Arrows
7208,331
Factor Arrows
1811,151

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, 7, 181, 1151

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 181 x 1,151 = 46,666,144

This can also be written as 25 x 71 x 1811 x 1,1511 = 46,666,144

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


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