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An algorithm is a sequence of steps to be followed to accomplish a certain task. Often used in computer programming, they can become interesting puzzles because even though there can be many ways to accomplish something, one may be better than another.
A prime such that its decimal period's length is shared with no other prime is called a unique prime (as defined by Yates in 1980). 3, 11, 37, and 101 are unique primes, since they are the only primes with periods one ( 1/3=.3333), two (1/11=.090909... ), three and four respectively.

List the first 15 unique primes, explaining how you obtained them.

Copying a list from OEIS does not qualify as a solution, getting information from any source is encouraged.

(No Solution Yet, 1 Comments) Submitted on 2017-11-24 by Ady TZIDON   
Page 1 of 6   next >>    
Difficulty: 3 of 5Leaving a maximal result |
Posted on 2017-08-25 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 4 of 5Marbles in boxes |
Posted on 2017-08-16 by Ady TZIDON (No Solution Yet, 5 Comments)
Difficulty: 4 of 5Growth Potential |
Posted on 2017-04-13 by Ady TZIDON (No Solution Yet, 4 Comments)
Difficulty: 2 of 5Exclusive Inverter |
Posted on 2016-12-21 by Brian Smith (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Random Trial |
Posted on 2016-10-02 by K Sengupta (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Nineteen Divisibility Nuance |
Posted on 2016-09-24 by K Sengupta (No Solution Yet, 0 Comments)
Difficulty: 3 of 5NegaTernary Nuance |
Posted on 2016-09-14 by K Sengupta (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Duodecimal Pandigital Divisibility Device |
Posted on 2016-09-13 by K Sengupta (No Solution Yet, 2 Comments)
Difficulty: 4 of 5Optimizing Potency | Rating: 5.00
Posted on 2015-11-19 by Steve Herman (Solution Posted, 10 Comments)
Difficulty: 3 of 5Deux Power Divisibility |
Posted on 2015-04-12 by K Sengupta (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Shared by squares |
Posted on 2015-02-10 by Jer (No Solution Yet, 3 Comments)
Difficulty: 2 of 5Number machine problem 2 | Rating: 4.00
Posted on 2014-12-02 by Math Man (No Solution Yet, 3 Comments)
Difficulty: 2 of 5Recruiting Crisis |
Posted on 2014-10-03 by Dustin (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Base Conversion Conclusion |
Posted on 2014-07-04 by K Sengupta (No Solution Yet, 1 Comments)
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