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| 189: | 3 | 3 | 3 | 7 | |||
| 420: | 2 | 2 | 3 | 5 | 7 | ||
| GCF: | 3 | 7 |
The Greates Common Factor (GCF) is: 3 x 7 = 21
| Greatest Common Factor (GCF) of 143 and 22 | | Greatest Common Factor (GCF) of 105 and 1440 | | Greatest Common Factor (GCF) of 1251 and 180 | | Greatest Common Factor (GCF) of 7045 and 9801 | | Greatest Common Factor (GCF) of 270 and 370 | | Greatest Common Factor (GCF) of 180 and 133 | | Greatest Common Factor (GCF) of 4 and 400 | | Greatest Common Factor (GCF) of 574 and 532 | | Greatest Common Factor (GCF) of 180 and 945 | | Greatest Common Factor (GCF) of 428 and 432 | | Greatest Common Factor (GCF) of 12 and 123 | | Greatest Common Factor (GCF) of 241 and 250 | | Greatest Common Factor (GCF) of 3 and 266 | | Greatest Common Factor (GCF) of 94 and 77 | | Greatest Common Factor (GCF) of 1560 and 195 | | Greatest Common Factor (GCF) of 140 and 500 | | Greatest Common Factor (GCF) of 171 and 32 | | Greatest Common Factor (GCF) of 1521 and 13 | | Greatest Common Factor (GCF) of 9 and 399 | | Greatest Common Factor (GCF) of 3 and 154 | | Greatest Common Factor (GCF) of 138 and 69 | | Greatest Common Factor (GCF) of 112 and 53 | | Greatest Common Factor (GCF) of 403 and 507 | | Greatest Common Factor (GCF) of 130 and 245 | | Greatest Common Factor (GCF) of 3300 and 5225 | | Greatest Common Factor (GCF) of 3330 and 5225 | | Greatest Common Factor (GCF) of 240 and 800 | | Greatest Common Factor (GCF) of 224 and 33 | | Greatest Common Factor (GCF) of 41 and 660 | | Greatest Common Factor (GCF) of 358 and 50 | | Greatest Common Factor (GCF) of 52 and 79 | | Greatest Common Factor (GCF) of 36 and 0.1 |