| Numbers | GCF |
| 1001, 44 | |
| 84, 27 | |
| n, n+1 | |
| 10^6, 5! | |
| 432, 168 | |
| 242, 363 | |
| 24/2, 36/2 | |
| 38, 114 | |
| 56, 63, 72 | |
| √(900), √(324) | |
| 64, 4, 32 | |
| 72, 28 | |
| 25, 7555 | |
| | Numbers | GCF |
| Atomic number of Helium, Atomic number of Neon | |
| 1 googol, 48 | |
| 65, 39 | |
| 98, 70 | |
| 90, 45 | |
| 117, 63 | |
| 6, 999 | |
| 87, 58 | |
| 2010, (2)(3)(5)(67) | |
| 60, 72 | |
| Years in a century, Days in a non-leap year | |
| 2^3, 3^2 | |
|