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| 105: | 3 | 5 | 7 | |
| 42: | 2 | 3 | 7 | |
| GCF: | 3 | 7 |
The Greates Common Factor (GCF) is: 3 x 7 = 21
| Greatest Common Factor (GCF) of 306 and 234 | | Greatest Common Factor (GCF) of 108 and 144 | | Greatest Common Factor (GCF) of 15 and 144 | | Greatest Common Factor (GCF) of 72 and 108 | | Greatest Common Factor (GCF) of 68 and 92 | | Greatest Common Factor (GCF) of 81 and 125 | | Greatest Common Factor (GCF) of 16 and 51 | | Greatest Common Factor (GCF) of 18 and 96 | | Greatest Common Factor (GCF) of 125 and 320 | | Greatest Common Factor (GCF) of 225 and 36 | | Greatest Common Factor (GCF) of 4 and 217 | | Greatest Common Factor (GCF) of 133 and 5 | | Greatest Common Factor (GCF) of 127 and 119 | | Greatest Common Factor (GCF) of 35 and 3 | | Greatest Common Factor (GCF) of 60 and 432 | | Greatest Common Factor (GCF) of 40 and 432 | | Greatest Common Factor (GCF) of 54 and 144 | | Greatest Common Factor (GCF) of 65 and 42 | | Greatest Common Factor (GCF) of 18 and 54 | | Greatest Common Factor (GCF) of 33 and 18 | | Greatest Common Factor (GCF) of 10 and 7 | | Greatest Common Factor (GCF) of 15 and 11 | | Greatest Common Factor (GCF) of 4 and 10 | | Greatest Common Factor (GCF) of 110 and 30 | | Greatest Common Factor (GCF) of 32 and 63 | | Greatest Common Factor (GCF) of 20 and 80 | | Greatest Common Factor (GCF) of 63 and 147 | | Greatest Common Factor (GCF) of 95 and 190 | | Greatest Common Factor (GCF) of 50 and 361 | | Greatest Common Factor (GCF) of 200 and 160 | | Greatest Common Factor (GCF) of 7560 and 945 | | Greatest Common Factor (GCF) of 132 and 48 |