The first 5 multiples of 21 are: 21, 42, 63, 84, and 105.
7, 14, 21, 28, 35
The are: 3 9 15 21 and 27
7, 14, 21, 28, 35
well five times two is ten so double five and you have the same multiples
LCM of 21 & 49 is 147, so all multiples of 147 are common multiples of 21 & 49.
The first five multiples of 21 are: 21, 42, 63, 84, 105.
Five multiples of 42 are 1, 2, 6, 7, 21, 42.
210, 420, 630, 840, 1050 Five common multiples. Only one can be least.
7, 14, 21, 28 and 35.
7, 14, 21, 28, 35
7, 14, 21, 28, 35
7, 14, 21, 28, 35
The are: 3 9 15 21 and 27
7, 14, 21, 28, 35.
21, 42, 63, 84 and 105
7, 14, 21, 28, 35
15, 21, 27, 33, 39