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| 420: | 2 | 2 | 3 | 5 | 7 | ||
| 616: | 2 | 2 | 2 | 7 | 11 | ||
| GCF: | 2 | 2 | 7 |
The Greates Common Factor (GCF) is: 2 x 2 x 7 = 28
| Greatest Common Factor (GCF) of 7 and 245 | | Greatest Common Factor (GCF) of 961 and 256 | | Greatest Common Factor (GCF) of 361 and 52 | | Greatest Common Factor (GCF) of 86 and 33 | | Greatest Common Factor (GCF) of 332 and 512 | | Greatest Common Factor (GCF) of 335 and 72 | | Greatest Common Factor (GCF) of 252 and 12 | | Greatest Common Factor (GCF) of 35 and 315 | | Greatest Common Factor (GCF) of 98 and 3 | | Greatest Common Factor (GCF) of 72 and 929 | | Greatest Common Factor (GCF) of 165 and 726 | | Greatest Common Factor (GCF) of 300 and 27 | | Greatest Common Factor (GCF) of 35 and 1225 | | Greatest Common Factor (GCF) of 424 and 424 | | Greatest Common Factor (GCF) of 308 and 418 | | Greatest Common Factor (GCF) of 169 and 1 | | Greatest Common Factor (GCF) of 98 and 122 | | Greatest Common Factor (GCF) of 100 and 185 | | Greatest Common Factor (GCF) of 832 and 832 | | Greatest Common Factor (GCF) of 100 and 2187 | | Greatest Common Factor (GCF) of 10 and 630 | | Greatest Common Factor (GCF) of 180 and 340 | | Greatest Common Factor (GCF) of 2187 and 40 | | Greatest Common Factor (GCF) of 243 and 360 | | Greatest Common Factor (GCF) of 32 and 261 | | Greatest Common Factor (GCF) of 56 and 297 | | Greatest Common Factor (GCF) of 513 and 27 | | Greatest Common Factor (GCF) of 243 and 224 | | Greatest Common Factor (GCF) of 361 and 400 | | Greatest Common Factor (GCF) of 150 and 18 | | Greatest Common Factor (GCF) of 150 and 8 | | Greatest Common Factor (GCF) of 336 and 54 |