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Find the three least positive integers that cannot be written as a!/b! + c!/d! + e!/f! for positive integers a,b,c,d,e,f less than or equal to 5.
(No Solution Yet, 3 Comments) Submitted on 2024-11-26 by Danish Ahmed Khan   
Page 57 of 167   << prev next >>    
Difficulty: 4 of 5Extreme Rationalization |
Posted on 2019-01-19 by Danish Ahmed Khan (No Solution Yet, 4 Comments)
Difficulty: 3 of 5Worm ate the numbers |
Posted on 2019-01-18 by Danish Ahmed Khan (No Solution Yet, 2 Comments)
Difficulty: 3 of 5Factorial Tremors |
Posted on 2019-01-16 by Danish Ahmed Khan (No Solution Yet, 5 Comments)
Difficulty: 3 of 5Square alphametics | Rating: 3.00
Posted on 2019-01-06 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 3 of 5Defining a number |
Posted on 2019-01-05 by Ady TZIDON (No Solution Yet, 2 Comments)
Difficulty: 3 of 54 or more primes |
Posted on 2019-01-03 by Ady TZIDON (Solution Posted, 3 Comments)
Difficulty: 3 of 5Ring in the New - again and again and again.. | Rating: 5.00
Posted on 2019-01-01 by broll (No Solution Yet, 2 Comments)
Difficulty: 3 of 52 sets with common members |
Posted on 2018-12-30 by Ady TZIDON (No Solution Yet, 3 Comments)
Difficulty: 3 of 5Double perfection |
Posted on 2018-12-28 by Ady TZIDON (Solution Posted, 1 Comments)
Difficulty: 3 of 5Same digits | Rating: 4.00
Posted on 2018-12-26 by Ady TZIDON (Solution Posted, 6 Comments)
Difficulty: 2 of 5Nine Digits in a Grid | Rating: 3.50
Posted on 2018-12-17 by Charlie (Solution Posted, 3 Comments)
Difficulty: 2 of 5Always zero or four |
Posted on 2018-12-16 by Ady TZIDON (No Solution Yet, 1 Comments)
Difficulty: 2 of 5All digits distinct |
Posted on 2018-12-12 by Ady TZIDON (Solution Posted, 5 Comments)
Difficulty: 2 of 5A short list |
Posted on 2018-12-11 by Ady TZIDON (Solution Posted, 2 Comments)
Difficulty: 3 of 58 distinct partitions |
Posted on 2018-12-06 by Ady TZIDON (No Solution Yet, 6 Comments)
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