c 15 and 21
No.
Any two coprime numbers
Composite numbers are integers or whole numbers that contain more than two factors in them. Prime numbers are also integers but only have two factors which are themselves and one.
The first 12 composite numbers are.... 4,6,8,9,10,12,14,15,16,18,20,21,A composite number is basically any number that can go into that number, so like 15 is a composite number because 15x1=15,and then 5x3=15. That's two or more pair of numbers.
Prime numbers have two factors, composite numbers have more than two.
Even composite numbers can, odd composite numbers can't.
Prime numbers have two factors. Composite numbers have more than two.
Composite numbers have more than two factors. So, the numbers which have two or less than two factors are not composite numbers. Numbers which have exactly two factors are prime numbers. 1 is an exceptional case because it is neither prime nor composite since it has only one factor which is 1.
The composite numbers for seventy two are 4,6,8,9,12,18,24,36, and 72.
Prime numbers have two factors, composite numbers have more than two.
The product of two prime numbers will be composite.
Prime numbers are numbers with only two factors. Composite numbers are numbers with more than two factors.