No. A notable exception is the set of prime numbers.
Not all (5 is prime) but every multiple of 5 greater than 5 is composite because they have more than two factors. Every multiple of any integer greater than one is composite.
Every prime number except 2 must be odd. This is because if it were even it would be divisible by 2 and so wouldn't be a prime number. The next point to note is that all odd numbers are one more or one less than a multiple of 4. Because 2 more than a multiple of 4 is even, and 3 more than a multiple of 4 is the same as 1 less than the multiple of 4 above. Thus every prime number except 2 must be 1 more or 1 less than a multiple of 4.
In that range, every prime number is either one more or one less than a multiple of 4. This also works for 6.
Every number greater than 1 has 1 and the number itself as factors. If it has no other factors besides these two factors, it is a prime number. If it has more factors than 1 and itself, it is a composite number.
There can never be a greatest common multiple of one number for two reasons:"Common" refers to a multiple that is common to two or more numbers. You cannot have a multiple that is common, but only to one number.If X is the greatest common multiple of a set of numbers, then any multiple of X will also be a common multiple of each member of the set and it will be greater than X. And then, any multiple of this number will be a multiple of each member of the set and will be greater still. And then ...
LCM(48, 72, 96) = 288 There is no GCM because any multiple of 288 is a common multiple. If any number lays claim to being a GCM, then that number+288 will also be a common multiple and will be greater. And 288 more will be greater still. And so on.
There is no "most common" multiple of two or more numbers, but there is a greatest common multiple if that's what you mean. But for multiples, the list of common ones goes on and on and on, since every single number in the universe is a multiple.
A common multiple
Prime numbers have only two factors. Multiples of any number greater than one have more than two.
4
If a number, when divided by 6, is more than 5, then the number must be greater than 30 and so cannot be between 29 and 30.
It is greater because with more digits the greater the value of the number will be.