Q: What are the prime factors of the number 144,766,016?

 A: 2, 17, 19, 47, 149

Why are those the prime factors of the number 144,766,016?

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 144,766,016

144,766,016
Factor Arrows
272,383,008
Factor Arrows
236,191,504
Factor Arrows
218,095,752
Factor Arrows
29,047,876
Factor Arrows
24,523,938
Factor Arrows
22,261,969
Factor Arrows
17133,057
Factor Arrows
197,003
Factor Arrows
47149

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, 17, 19, 47, 149

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 17 x 19 x 47 x 149 = 144,766,016

This can also be written as 26 x 171 x 191 x 471 x 1491 = 144,766,016

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


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