The numbers are: -7 and -12
84
Multiples of 12 are 12, 24, 36, 48, 60, 72, 84... Multiples of 42 are 42, 84... Two common multiples of 12 and 42 are 84 and 168. The Least Common Multiple of 12 and 42 is 84.
Itself and any of its multiples
Multiples of 84
The lowest common multiple of 7 and 12 is 84. Therefore, the multiples of 7 and 12 are multiples of 84. The first five are: 84 168 252 336 420
84
The multiples of 7 through 84 are 7,14,21,28,35,42,49,56,63,70,77 and 84.
Common multiples of 14 and 84 include all multiples of 84 (84, 168, 252 and so on) because 84 = 6 x 14, a multiple of 14.
Multiples of 12 are 12, 24, 36, 48, 60, 72, 84... Multiples of 42 are 42, 84... Two common multiples of 12 and 42 are 84 and 168. The Least Common Multiple of 12 and 42 is 84.
84, 168, 252 and so on.
These are some of the multiples of 84....84,168,252,336,420,504,588,672,756,840,924...
The multiples are as follows:49,56,63,70,77,84
Multiples of 84 include 84, 168, 252, 336, 420 and so on.
84, 168, 252
All multiples of 84, which is an infinite number.
10 and -9
The common multiples of 4 and 7 are 28, 56, 84, and so on.