The common multiples of 5 and 6 are the multiples of their lowest common multiple (which is 30), so there are infinitely many common multiples of 5 and 6. The first five are: 30, 60, 90, 120, 150.
Common multiples of 7 and 5 include 35, 70, 140, etc.
the LCM of 3,4 and 5 is 60
Factors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120 Multiples: 120, 240, 360, 480, 600, 720, 840, 960 and just keep adding 120 till you get to infinity.
The multiples of 3 up to 30 are: 3,6,9,12,15,18,21,24,27,30.The multiples of 5 up to 30 are: 5,10,15,20,25,30.The only common multiples are 15 and 30.The LCM is: 30
There are no greatest common multiples only greatest common factors
60, 120, 180, 240, 300, 360, 420, 480
The first 5 common multiples are the first 5 multiples of their lowest common multiple (LCM) LCM(9, 10) = 90 → first 5 common multiples are 90, 180, 270, 360, 450.
120, 240, 360, 480, 600
The common multiples of 5 and 8 are the multiples of their lowest common multiple; lcm(5, 8) = 40 → the first five common multiples of 5 and 8 are: 40, 80, 120, 160, 200.
120, 240, 360 and so on..
72, 144, 216, 288, 360.
180, 360, 540
120, 240, 360
There can only be one greatest and the greatest common multiple of 9 and 10 is infinite. The first 5 common multiples of 9 and 10 are 90, 180, 270, 360 and 450.
The multiples of 5 are 5, 10, 15, 20, 25, 30, etc. The multiples of 15 are 15, 30, 45, 60, 75, 90, etc. The multiples of 16 are 16, 32, 48, 64, 80, 96, etc. The common multiples of 5, 15, and 16 are 240, 480, 720 and so on.
The multiples of 120 are mentioned in the first answer. The multiples for 120 are 2, 3 and 5. An alternative answer is 2, 3, 4, 5, 6, 10, 15, 20, 30 and 60. That is 10 numbers. There is no smaller number 120 that can be divided 10 or more times. This is probably why sumerians chose 60 (half of 120) and 360 (3 times 120) as common numbers.