Putting this as CS would be better, for real!

Number Theory Level 3

Find the minimum positive value of k k so that 8 ! + k 8!+k is a prime number.

Inspiration.


The answer is 23.

Steven Jim by Steven Jim , 17, Vietnam

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1 solution

Md Zuhair
Aug 20, 2017

I did it using CS.

I made a program to show the number of primes between 2 numbers.

I inserted 40320 and 40400. And the 1st one was 40343 40343 . So 8 ! + 23 8!+23

2 Helpful 0 Interesting 0 Brilliant 0 Confused

I do agree that CS would make the problem like a piece of cake, but I still hope for a non-CS solution. Anyways, can you please post your code, in this case?

Steven Jim - 3 years, 9 months ago

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