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| 90: | 2 | 3 | 3 | 5 | |
| 63: | 3 | 3 | 7 | ||
| GCF: | 3 | 3 |
The Greates Common Factor (GCF) is: 3 x 3 = 9
| Greatest Common Factor (GCF) of 47 and 80 | | Greatest Common Factor (GCF) of 105 and 210 | | Greatest Common Factor (GCF) of 220 and 100 | | Greatest Common Factor (GCF) of 729 and 1296 | | Greatest Common Factor (GCF) of 36 and 1331 | | Greatest Common Factor (GCF) of 100 and 6 | | Greatest Common Factor (GCF) of 256 and 100 | | Greatest Common Factor (GCF) of 2197 and 16 | | Greatest Common Factor (GCF) of 5 and 64 | | Greatest Common Factor (GCF) of 2800 and 7 | | Greatest Common Factor (GCF) of 7000 and 7 | | Greatest Common Factor (GCF) of 510 and 2125 | | Greatest Common Factor (GCF) of 195 and 455 | | Greatest Common Factor (GCF) of 68 and 255 | | Greatest Common Factor (GCF) of 54 and 77 | | Greatest Common Factor (GCF) of 58 and 77 | | Greatest Common Factor (GCF) of 39 and 94 | | Greatest Common Factor (GCF) of 19 and 83 | | Greatest Common Factor (GCF) of 9 and 70 | | Greatest Common Factor (GCF) of 4 and 45 | | Greatest Common Factor (GCF) of 99 and 165 | | Greatest Common Factor (GCF) of 69 and 91 | | Greatest Common Factor (GCF) of 51 and 93 | | Greatest Common Factor (GCF) of 540 and 144 | | Greatest Common Factor (GCF) of 1001 and 20 | | Greatest Common Factor (GCF) of 182 and 2392 | | Greatest Common Factor (GCF) of 2187 and 189 | | Greatest Common Factor (GCF) of 189 and 567 | | Greatest Common Factor (GCF) of 10 and 126 | | Greatest Common Factor (GCF) of 1 and 46 | | Greatest Common Factor (GCF) of 65 and 26 | | Greatest Common Factor (GCF) of 150 and 90 |