Q: What are the prime factors of the number 268,630,670?

 A: 2, 5, 7, 11, 179, 1949

Why are those the prime factors of the number 268,630,670?

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 268,630,670

268,630,670
Factor Arrows
2134,315,335
Factor Arrows
526,863,067
Factor Arrows
73,837,581
Factor Arrows
11348,871
Factor Arrows
1791,949

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, 11, 179, 1949

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 11 x 179 x 1,949 = 268,630,670

This can also be written as 21 x 51 x 71 x 111 x 1791 x 1,9491 = 268,630,670

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


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