The common multiples of 2 and 7 are 14, 28, 42, 56, 70, 84, 98, and so on.
Here are some common multiples of 12 and 7 84, 168, 1008 and 12096.
7,14,21,28,35,42,49,56,63,70,77,84,91,98,105
14,28,42,56,70...
42
lcm(2, 7) = 14 → first 3 common multiples are: 14, 28, 42; lcm(2, 8) = 8 → first 3 common multiples are: 8, 16, 24; lcm(7, 8) = 56 → first 3 common multiples are: 56, 112, 168; lcm(2, 7, 8) = 56 → first 3 common multiples are: 56, 112, 168.
35..
14 = 2 X 7 42 = 2 X 3 X 7 So 2 & 7 are common to both multiples / NB '3' is NOT a common multiple.
To find the common multiples of 2, 3, and 7, we first list the multiples of each number: Multiples of 2: 2, 4, 6, 8, 10, 12, ... Multiples of 3: 3, 6, 9, 12, 15, 18, ... Multiples of 7: 7, 14, 21, 28, 35, ... The first common multiple of 2, 3, and 7 is 6, as it is the smallest number that is a multiple of all three numbers. The second common multiple is 12, as it is the next number that is a multiple of all three numbers.
There are an infinite number of common multiples for 7 and nine. Some of them are 63, 126, 189, 252, 315, and 378.63
28 and 56
Any multiple of 14.