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Question
Answer
BigDevil
LCM of 3 and 7 -> 21
21 × 3 = 69
The two numbers are 21 and 69.
Check:
| 21 | 69 |
| 1 × 21 | 1 × 63 |
| 3 × 7 | 3 × 21 |
| 7 × 9 |
4 common factors: 1, 3, 7, 21