Q: What are the prime factors of the number 264,385,152?

 A: 2, 3, 19, 47, 257

Why are those the prime factors of the number 264,385,152?

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 264,385,152

264,385,152
Factor Arrows
2132,192,576
Factor Arrows
266,096,288
Factor Arrows
233,048,144
Factor Arrows
216,524,072
Factor Arrows
28,262,036
Factor Arrows
24,131,018
Factor Arrows
22,065,509
Factor Arrows
3688,503
Factor Arrows
3229,501
Factor Arrows
1912,079
Factor Arrows
47257

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, 19, 47, 257

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 3 x 3 x 19 x 47 x 257 = 264,385,152

This can also be written as 27 x 32 x 191 x 471 x 2571 = 264,385,152

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


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