The common multiples of an set of numbers are the multiples of their lowest common multiple. lcm(7, 8, 9) = 504 → the first 3 common multiples of 7, 8, 9 are 504, 1008, 1512.
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.
The first common multiple of 3 4 5 and 7 is 420.
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.
21
The common multiples of 3 and 7 are 21, 42, 63 and so on.
140,280,420
They are: 140, 280 and 420
35, 70, 105
42 is the LCM of 3, 6 and 7. All multiples of 42 are multiples of 3, 6 and 7
the first three common multiples of 7, 20, and 35 are 140, 280, and 420
The first 3 multiples of 7 are: 7, 14, and 21.