common multiples of 3 and 9 are : 9, 18, 27, 36, 45, 54,63, ect.....
Yes, all except zero.
Everything except 4, 8, 12 and so on.
Oh, dude, common multiples are just numbers that all three of these divas can divide into without any drama. So, for 2, 3, and 7, their common multiples would be like 42, 84, 126, and so on. It's like finding a party playlist that everyone can groove to without any complaints.
'Relatively Prime' simply means that two numbers have no common factors except 1 between each other. For example, two prime numbers would have no common factors between them. i.e., look at 3 and 10. There are no common factors between these 2 numbers.
They all are except 806
No multiple of ' 2 ', except ' 2 ' itself, is a prime number.
There are infinitely many common multiples of 3, 5 and 7, each one 105 larger than the previous one. Or to put it another way: the common multiples of 3, 5 and 7 are the multiples of their lowest common multiple which is 105. ie their common multiples are all the multiples of 105, of which there is no end - there is an infinite number of multiples of 105 (or any other number [except zero]).
All numbers that are multiples of 2. All numbers that are 2,4,6,8, or end in 2,4,6,8,0.
The multiples of any number cannot be prime numbers because such numbers are the product of at least two numbers. Prime numbers, but definition, cannot be cannot be the product of any numbers except itself and one.
They are the composite numbers, products of primes and their multiples. All even numbers are composite, except the number two (2) which is prime.
Mulriples of 2 - 2, 4, 6,8,10,12,24,26,28,30,32,34,36,38,40.... JUST KEEP ADDING TWO
Prime numbers are numbers with no common factors but one and itself.