There is an infinite number of common multiples for 18 and 42. A common multiple of any two numbers is any number into which each of two or more numbers can be divided evenly (zero remainder).
Chat with our AI personalities
first of all, factor... and it is 6, it is both multiples of 42 and 18
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.
42 is the LCM of 3, 6 and 7. All multiples of 42 are multiples of 3, 6 and 7
The common multiples of 18 and 24 are 72 and 144.
42 and 84