84 and 224:
- Factors of 84: 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
- Factors of 224: 1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224
The greatest common factor (GCF) of 84 and 224 is 28.
16.20 and 48:
- Factors of 16.20: 1, 2, 3, 4, 6, 8, 12, 13, 24, 36, 48, 67, 81, 162, 203, 324, 406, 648, 812, 1296, 1624, 3248
- Factors of 48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
The greatest common factor (GCF) of 16.20 and 48 is 12.