Q: What are the prime factors of the number 312,112,112?

 A: 2, 13, 17, 61, 1447

Why are those the prime factors of the number 312,112,112?

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 312,112,112

312,112,112
Factor Arrows
2156,056,056
Factor Arrows
278,028,028
Factor Arrows
239,014,014
Factor Arrows
219,507,007
Factor Arrows
131,500,539
Factor Arrows
1788,267
Factor Arrows
611,447

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, 13, 17, 61, 1447

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 13 x 17 x 61 x 1,447 = 312,112,112

This can also be written as 24 x 131 x 171 x 611 x 1,4471 = 312,112,112

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


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