Q: What are the prime factors of the number 312,126,012?

 A: 2, 3, 11, 197, 4001

Why are those the prime factors of the number 312,126,012?

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 312,126,012

312,126,012
Factor Arrows
2156,063,006
Factor Arrows
278,031,503
Factor Arrows
326,010,501
Factor Arrows
38,670,167
Factor Arrows
11788,197
Factor Arrows
1974,001

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, 11, 197, 4001

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 197 x 4,001 = 312,126,012

This can also be written as 22 x 32 x 111 x 1971 x 4,0011 = 312,126,012

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


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