Q: What are the prime factors of the number 159,226,480?

 A: 2, 5, 7, 151, 269

Why are those the prime factors of the number 159,226,480?

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 159,226,480

159,226,480
Factor Arrows
279,613,240
Factor Arrows
239,806,620
Factor Arrows
219,903,310
Factor Arrows
29,951,655
Factor Arrows
51,990,331
Factor Arrows
7284,333
Factor Arrows
740,619
Factor Arrows
151269

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, 5, 7, 151, 269

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 7 x 7 x 151 x 269 = 159,226,480

This can also be written as 24 x 51 x 72 x 1511 x 2691 = 159,226,480

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


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