They are: 18+24+30 = 72
Count by 2's.2, 4, 6, 8, 10, 12
The First common multiple of 6 and 7 is 42 and the next common multiple is 84.
The lowest common multiple of 6 and 8 is 24, because there's 4x 6's in 24, and 3x 8's in it too.
To find the first multiple of 6 that has 7 as a factor, we need to find the least common multiple (LCM) of 6 and 7. The LCM of 6 and 7 is 42. Therefore, the first multiple of 6 that has 7 as a factor is 42.
The first multiples of 6 are 6,12,18,24,30,36,42,48,54,60,66,72,78,84,90,96 and 102. Is that enough?
6 and 12 are the first two
24.
30
6, 12, 18, 24, 30.
6, 12 and 18.
36