Q: What are the prime factors of the number 158,241,568?

 A: 2, 2011, 2459

Why are those the prime factors of the number 158,241,568?

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 158,241,568

158,241,568
Factor Arrows
279,120,784
Factor Arrows
239,560,392
Factor Arrows
219,780,196
Factor Arrows
29,890,098
Factor Arrows
24,945,049
Factor Arrows
2,0112,459

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, 2011, 2459

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2,011 x 2,459 = 158,241,568

This can also be written as 25 x 2,0111 x 2,4591 = 158,241,568

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


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