Q: What are the prime factors of the number 158,406,688?

 A: 2, 11, 450019

Why are those the prime factors of the number 158,406,688?

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 158,406,688

158,406,688
Factor Arrows
279,203,344
Factor Arrows
239,601,672
Factor Arrows
219,800,836
Factor Arrows
29,900,418
Factor Arrows
24,950,209
Factor Arrows
11450,019

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, 11, 450019

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 11 x 450,019 = 158,406,688

This can also be written as 25 x 111 x 450,0191 = 158,406,688

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


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