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| 15: | 3 | 5 | |
| 6: | 2 | 3 | |
| GCF: | 3 |
The Greates Common Factor (GCF) is: 3
| Greatest Common Factor (GCF) of 12 and 16 | | Greatest Common Factor (GCF) of 7 and 3 | | Greatest Common Factor (GCF) of 18 and 88 | | Greatest Common Factor (GCF) of 63 and 2 | | Greatest Common Factor (GCF) of 21 and 12 | | Greatest Common Factor (GCF) of 10 and 24 | | Greatest Common Factor (GCF) of 45 and 14 | | Greatest Common Factor (GCF) of 19 and 57 | | Greatest Common Factor (GCF) of 23 and 8 | | Greatest Common Factor (GCF) of 48 and 100 | | Greatest Common Factor (GCF) of 14 and 6 | | Greatest Common Factor (GCF) of 8 and 9 | | Greatest Common Factor (GCF) of 20 and 8 | | Greatest Common Factor (GCF) of 161 and 16 | | Greatest Common Factor (GCF) of 32 and 140 | | Greatest Common Factor (GCF) of 3 and 48 | | Greatest Common Factor (GCF) of 6 and 18 | | Greatest Common Factor (GCF) of 5 and 15 | | Greatest Common Factor (GCF) of 16 and 510 | | Greatest Common Factor (GCF) of 900 and 60 | | Greatest Common Factor (GCF) of 28 and 8 | | Greatest Common Factor (GCF) of 28 and 40 | | Greatest Common Factor (GCF) of 12 and 28 | | Greatest Common Factor (GCF) of 2 and 20 | | Greatest Common Factor (GCF) of 6 and 9 | | Greatest Common Factor (GCF) of 20 and 65 | | Greatest Common Factor (GCF) of 27 and 36 | | Greatest Common Factor (GCF) of 10 and 100 | | Greatest Common Factor (GCF) of 23 and 45 | | Greatest Common Factor (GCF) of 10 and 15 | | Greatest Common Factor (GCF) of 13 and 33 | | Greatest Common Factor (GCF) of 28 and 60 |