Multiples of 21 include 21, 42, 63, 84 and so on. For them to be common, they need to be compared to another set of multiples.
The least common multiple of 21 , 19 = 399
The LCM of 10 and 21 is: 210Least Common Multiple (LCM) for 10 21 is 210
A common multiple of 9 and 21 is 63
The least common multiple of 6 , 21 = 42
The Least Common Multiple of 18 and 21 is 126.
The highest common multiple of 21 and 84 is infinity. The least common multiple, on the other hand, is 84, while the greatest common divisor is 21.
The Least Common Multiple of 21, 63, 147: 441
The Least Common Multiple (LCM) for 49 63 21 is 441.
21
Least Common Multiple (LCM) for 21 26 is 546.
The Least Common Multiple (LCM) for 21 70 is 210.
The Least Common Multiple (LCM) for 39 21 is 273.