Q: What are the prime factors of the number 153,435,240?

 A: 2, 3, 5, 7, 60887

Why are those the prime factors of the number 153,435,240?

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 153,435,240

153,435,240
Factor Arrows
276,717,620
Factor Arrows
238,358,810
Factor Arrows
219,179,405
Factor Arrows
36,393,135
Factor Arrows
32,131,045
Factor Arrows
5426,209
Factor Arrows
760,887

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, 7, 60887

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 5 x 7 x 60,887 = 153,435,240

This can also be written as 23 x 32 x 51 x 71 x 60,8871 = 153,435,240

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


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