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| 81: | 3 | 3 | 3 | 3 | |
| 153: | 3 | 3 | 17 | ||
| GCF: | 3 | 3 |
The Greates Common Factor (GCF) is: 3 x 3 = 9
| Greatest Common Factor (GCF) of 54 and 26 | | Greatest Common Factor (GCF) of 68 and 20 | | Greatest Common Factor (GCF) of 50 and 190 | | Greatest Common Factor (GCF) of 60 and 37 | | Greatest Common Factor (GCF) of 240 and 148 | | Greatest Common Factor (GCF) of 39 and 14 | | Greatest Common Factor (GCF) of 37 and 7 | | Greatest Common Factor (GCF) of 83 and 35 | | Greatest Common Factor (GCF) of 99 and 44 | | Greatest Common Factor (GCF) of 12 and 72 | | Greatest Common Factor (GCF) of 22 and 77 | | Greatest Common Factor (GCF) of 90 and 50 | | Greatest Common Factor (GCF) of 256 and 343 | | Greatest Common Factor (GCF) of 99 and 66 | | Greatest Common Factor (GCF) of 95 and 96 | | Greatest Common Factor (GCF) of 19 and 30 | | Greatest Common Factor (GCF) of 7 and 72 | | Greatest Common Factor (GCF) of 34 and 65 | | Greatest Common Factor (GCF) of 6 and 26 | | Greatest Common Factor (GCF) of 117 and 156 | | Greatest Common Factor (GCF) of 117 and 186 | | Greatest Common Factor (GCF) of 9 and 51 | | Greatest Common Factor (GCF) of 10000 and 984 | | Greatest Common Factor (GCF) of 5842 and 864 | | Greatest Common Factor (GCF) of 72 and 275 | | Greatest Common Factor (GCF) of 27 and 35 | | Greatest Common Factor (GCF) of 22 and 20 | | Greatest Common Factor (GCF) of 56 and 98 | | Greatest Common Factor (GCF) of 40 and 96 | | Greatest Common Factor (GCF) of 96 and 144 | | Greatest Common Factor (GCF) of 144 and 40 | | Greatest Common Factor (GCF) of 36 and 126 |