Whatever isn't prime: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18
Prime numbers have two factors. Composite have more than two. Neither (one and zero) have less than two.
Prime numbers have two factors. Composite numbers have more than two.
dont know dont care
They are both composite numbers because they have more than two factors
Julia is incorrect. 2 is an even prime number and 9 is an odd composite number.
Whatever isn't prime: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18
They are: 4 6 8 9 10 12 14 15 18 and 20 because they all have more than two factors.
Prime numbers have two factors. Composite have more than two. Neither (one and zero) have less than two.
The composite numbers in that list are 22 and 36 - you know they are composite, because they are even numbers. The other numbers are odd and prime.
Prime numbers have two factors. Composite numbers have more than two.
dont know dont care
Not that I know of.
I can check them for divisibility by prime numbers.
4, 6, 8, 9, 10, 12, 14, 15, 16, 18 They all have more than two factors.
They are both composite numbers because they have more than two factors
We know that 28 is a composite number because:It is an even numberIt is divisible by more than 2 numbers