aubreyporter aubreyporter

18-11-2015
Mathematics

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The sum of two prime numbers is 85, what is the product of these two prime numbers? A. 85 B. 91 C. 115 D. 166

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WorldCitizen WorldCitizen

23-11-2015

the sum is odd, and an odd sum must be composed of an even and an odd number!

so one of the numbers is even and it's prime: it must be 2!
and the other number will be 85-2=83.

and their product is 2*83=166.

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