105
7
15x21=315
The lowest common multiple (LCM) is: 252
The lowest common multiple is 21
The Least Common Multiple of 18 and 21 is 126.
LCM: 21
The lowest common multiple of 3 and 8 is 24.List the multiples of 3 and 8. The lowest multiple they have in common is the least common multiple.3: 3, 6, 9, 12, 15, 18, 21, 24, 27...8: 8, 16, 24...
its 105
126
231
It is: 21
210