There is an infinite number of common multiples for 40 and 84. A common multiple of any two or more numbers is any number into which each of two or more numbers can be divided evenly (zero remainder).
LCM of 24, 40, and 84 is 840. Just write out the multiples of each until you get to a common number.
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.
No - common multiples of 4 & 12 up to 100 are... 12, 24, 36, 46, 60, 72, 84 & 96
1 and 2 are common factors. 84 and 168 are common multiples.
Multiples of 40 include 40, 80, 120 and so on. For them to be common, they need to be compared to another set of multiples.
As 84 = 14 x 6: All the factors of 14 are common to both, ie the common factors of 14 and 84 are: 1, 2, 7, 14; All the multiples of 84 are common to both 14 and 84, ie the common multiples of 14 and 84 are: 84, 168, 252, 336, 420, 504, 588, 672, 756, 840, ...
The lowest common multiple of 84 and 96 is 672
The multiples of 28 include 28, 56 and 84. For them to be common, they need to be compared to another set of multiples.
the least common multiple is 84
84
84