Q: What are the prime factors of the number 178,119,858?

 A: 2, 3, 7, 1759, 2411

Why are those the prime factors of the number 178,119,858?

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 178,119,858

178,119,858
Factor Arrows
289,059,929
Factor Arrows
329,686,643
Factor Arrows
74,240,949
Factor Arrows
1,7592,411

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, 7, 1759, 2411

We can check our work by multiplying all of the prime factors together: 2 x 3 x 7 x 1,759 x 2,411 = 178,119,858

This can also be written as 21 x 31 x 71 x 1,7591 x 2,4111 = 178,119,858

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


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