Algebra: Greatest Common Divisor (GCD)
| Solution Set | Given Numbers | GCD |
| 1 | 44,11,66 | 11 |
| 2 | 570,133,323 | 19 |
| 3 | 63,56,14 | 7 |
| 4 | 48,12,72 | 12 |
| 5 | 55,33,66 | 11 |
| 6 | 63,18,45 | 9 |
| 7 | 84,60,12 | 12 |
| 8 | 45,20,35 | 5 |
| 9 | 21,12,18 | 3 |
| 10 | 11,33,55 | 11 |
| 11 | 12,84,48 | 12 |
| 12 | 36,16,28 | 4 |
| 13 | 63,36,45 | 9 |
| 14 | 54,30,18 | 6 |
| 15 | 40,48,72 | 8 |
| 16 | 60,30,70 | 10 |
| 17 | 56,70,42 | 14 |
| 18 | 50,30,60 | 10 |
| 19 | 207,253,368 | 23 |
| 20 | 18,12,10 | 2 |
| 21 | 35,70,14 | 7 |
| 22 | 45,36,72 | 9 |
| 23 | 55,11,33 | 11 |
| 24 | 44,55,77 | 11 |
| 25 | 48,12,60 | 12 |
| 26 | 84,98,56 | 14 |
| 27 | 28,7,35 | 7 |
| 28 | 340,187,527 | 17 |
| 29 | 56,14,84 | 14 |
| 30 | 60,40,10 | 10 |
| 31 | 60,10,50 | 10 |
| 32 | 65,39,299 | 13 |
| 33 | 45,20,10 | 5 |
| 34 | 70,98,84 | 14 |
| 35 | 77,66,33 | 11 |
| 36 | 30,18,6 | 6 |
| 37 | 66,44,33 | 11 |
| 38 | 527,85,221 | 17 |
| 39 | 63,28,56 | 7 |
| 40 | 81,90,63 | 9 |
| 41 | 39,169,403 | 13 |
| 42 | 35,10,25 | 5 |
| 43 | 63,54,36 | 9 |
| 44 | 63,28,49 | 7 |
| 45 | 456,133,361 | 19 |
| 46 | 81,27,45 | 9 |
| 47 | 42,7,28 | 7 |
| 48 | 551,145,667 | 29 |
| 49 | 138,713,299 | 23 |
| 50 | 51,34,391 | 17 |