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| 420: | 2 | 2 | 3 | 5 | 7 | |
| 370: | 2 | 5 | 37 | |||
| GCF: | 2 | 5 |
The Greates Common Factor (GCF) is: 2 x 5 = 10
| Greatest Common Factor (GCF) of 145 and 120 | | Greatest Common Factor (GCF) of 30 and 238 | | Greatest Common Factor (GCF) of 315 and 308 | | Greatest Common Factor (GCF) of 606 and 375 | | Greatest Common Factor (GCF) of 128 and 1573 | | Greatest Common Factor (GCF) of 1854 and 1634 | | Greatest Common Factor (GCF) of 138 and 243 | | Greatest Common Factor (GCF) of 95 and 231 | | Greatest Common Factor (GCF) of 333 and 341 | | Greatest Common Factor (GCF) of 86 and 825 | | Greatest Common Factor (GCF) of 14 and 454 | | Greatest Common Factor (GCF) of 1425 and 1805 | | Greatest Common Factor (GCF) of 109 and 16 | | Greatest Common Factor (GCF) of 309 and 444 | | Greatest Common Factor (GCF) of 325 and 185 | | Greatest Common Factor (GCF) of 1472 and 2576 | | Greatest Common Factor (GCF) of 590 and 100 | | Greatest Common Factor (GCF) of 2604 and 3 | | Greatest Common Factor (GCF) of 84 and 4896 | | Greatest Common Factor (GCF) of 1000 and 92 | | Greatest Common Factor (GCF) of 1000 and 169 | | Greatest Common Factor (GCF) of 0.25 and 0.35 | | Greatest Common Factor (GCF) of 96 and 727 | | Greatest Common Factor (GCF) of 2100 and 600 | | Greatest Common Factor (GCF) of 1380 and 360 | | Greatest Common Factor (GCF) of 231 and 840 | | Greatest Common Factor (GCF) of 494 and 840 | | Greatest Common Factor (GCF) of 217 and 29 | | Greatest Common Factor (GCF) of 1584 and 81 | | Greatest Common Factor (GCF) of 69 and 700 | | Greatest Common Factor (GCF) of 255 and 31 | | Greatest Common Factor (GCF) of 618 and 660 |