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| 640: | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | ||
| 1680: | 2 | 2 | 2 | 2 | 3 | 5 | 7 | |||
| GCF: | 2 | 2 | 2 | 2 | 5 |
The Greates Common Factor (GCF) is: 2 x 2 x 2 x 2 x 5 = 80
| Greatest Common Factor (GCF) of 3454 and 1256 | | Greatest Common Factor (GCF) of 861 and 1476 | | Greatest Common Factor (GCF) of 683 and 250 | | Greatest Common Factor (GCF) of 1054 and 1083 | | Greatest Common Factor (GCF) of 64000000 and 361 | | Greatest Common Factor (GCF) of 1540 and 63 | | Greatest Common Factor (GCF) of 1045 and 8745 | | Greatest Common Factor (GCF) of 1054 and 674 | | Greatest Common Factor (GCF) of 18149 and 1054 | | Greatest Common Factor (GCF) of 361 and 64000000 | | Greatest Common Factor (GCF) of 8232 and 1366 | | Greatest Common Factor (GCF) of 1503 and 437 | | Greatest Common Factor (GCF) of 470 and 639 | | Greatest Common Factor (GCF) of 3400 and 5000 | | Greatest Common Factor (GCF) of 680 and 5000 | | Greatest Common Factor (GCF) of 196 and 624 | | Greatest Common Factor (GCF) of 5112 and 6426 | | Greatest Common Factor (GCF) of 1122 and 3025 | | Greatest Common Factor (GCF) of 12648 and 3797 | | Greatest Common Factor (GCF) of 3000 and 1916 | | Greatest Common Factor (GCF) of 10000 and 816 | | Greatest Common Factor (GCF) of 189 and 810 | | Greatest Common Factor (GCF) of 189 and 816 | | Greatest Common Factor (GCF) of 1520 and 13 | | Greatest Common Factor (GCF) of 121 and 352 | | Greatest Common Factor (GCF) of 768 and 3650 | | Greatest Common Factor (GCF) of 115 and 700 | | Greatest Common Factor (GCF) of 1863 and 286 | | Greatest Common Factor (GCF) of 824 and 950 | | Greatest Common Factor (GCF) of 133 and 728 | | Greatest Common Factor (GCF) of 1323 and 1890 | | Greatest Common Factor (GCF) of 3400 and 850 |