perplexus.info :: Just Math : N Nine Nuance

N Nine Nuance (Posted on 2016-01-29)

Determine the minimum value of a positive integer N > 2 such that:
the number 199...991, containing precisely N nines, is divisible by 1991.

See The Solution Submitted by K Sengupta

Rating: 5.0000 (1 votes)

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re:corrected answer only

Comment 6 of 6 |

(In reply to Answer only by Ady TZIDON)

I have erroneously started with N(0)=1991, instead of N(2)=1991

So the value 0 is reached when N=182 (corrected answer)

Edited on January 29, 2016, 3:40 pm

Posted by Ady TZIDON on 2016-01-29 15:38:17

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