Q: What are the prime factors of the number 264,161,040?

 A: 2, 3, 5, 11, 13, 43, 179

Why are those the prime factors of the number 264,161,040?

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 264,161,040

264,161,040
Factor Arrows
2132,080,520
Factor Arrows
266,040,260
Factor Arrows
233,020,130
Factor Arrows
216,510,065
Factor Arrows
35,503,355
Factor Arrows
51,100,671
Factor Arrows
11100,061
Factor Arrows
137,697
Factor Arrows
43179

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, 5, 11, 13, 43, 179

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 11 x 13 x 43 x 179 = 264,161,040

This can also be written as 24 x 31 x 51 x 111 x 131 x 431 x 1791 = 264,161,040

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


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