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| 40: | 2 | 2 | 2 | 5 | ||
| 420: | 2 | 2 | 3 | 5 | 7 | |
| GCF: | 2 | 2 | 5 |
The Greates Common Factor (GCF) is: 2 x 2 x 5 = 20
| Greatest Common Factor (GCF) of 5 and 420 | | Greatest Common Factor (GCF) of 21 and 420 | | Greatest Common Factor (GCF) of 10 and 420 | | Greatest Common Factor (GCF) of 105 and 420 | | Greatest Common Factor (GCF) of 210 and 420 | | Greatest Common Factor (GCF) of 36 and 600 | | Greatest Common Factor (GCF) of 114 and 133 | | Greatest Common Factor (GCF) of 140 and 81 | | Greatest Common Factor (GCF) of 105 and 115 | | Greatest Common Factor (GCF) of 445 and 286 | | Greatest Common Factor (GCF) of 416 and 169 | | Greatest Common Factor (GCF) of 121 and 96 | | Greatest Common Factor (GCF) of 9 and 151 | | Greatest Common Factor (GCF) of 88 and 171 | | Greatest Common Factor (GCF) of 76 and 42 | | Greatest Common Factor (GCF) of 74 and 124 | | Greatest Common Factor (GCF) of 94 and 106 | | Greatest Common Factor (GCF) of 352 and 125 | | Greatest Common Factor (GCF) of 944 and 1170 | | Greatest Common Factor (GCF) of 91 and 121 | | Greatest Common Factor (GCF) of 637 and 847 | | Greatest Common Factor (GCF) of 324 and 1925 | | Greatest Common Factor (GCF) of 891 and 1089 | | Greatest Common Factor (GCF) of 198 and 27 | | Greatest Common Factor (GCF) of 27 and 1331 | | Greatest Common Factor (GCF) of 360 and 468 | | Greatest Common Factor (GCF) of 700 and 450 | | Greatest Common Factor (GCF) of 174 and 186 | | Greatest Common Factor (GCF) of 78 and 55 | | Greatest Common Factor (GCF) of 546 and 1521 | | Greatest Common Factor (GCF) of 15 and 900 | | Greatest Common Factor (GCF) of 425 and 200 |