sicne 13 is prime it simple is 13*21=273
or you can factor it as well and see
13=1*13
21=3*7
LCM=3*7*13=273
The least common multiple of the numbers 13, 21 and 14 is 546.
3003
The LCM is 21.
the lcm of 3 and 7 is 21 and the lcm of 7 and 21 is 21, so the lcm of 3, 7 and 21 is the lcm of 21 and 21 which is 21.
The LCM is 21.
The Least Common Multiple (LCM) for 3 21 is 21.
The LCM of 3 and 21 is 21
The LCM is 966.
The LCM is 903.
The LCM of 21 and 18 is 126.
The LCM is 273.
The LCM is 798.