Is 40 and 41 composite?
Composite numbers can be divided evenly by numbers other than 1
or itself.
For example 12 can be divided evenly by 1, 2, 3, 4, 6 and
12.
40 can be divided evenly by 1, 2, 4, 5, 8, 10..........etc so it
is a composite number
41 can be divided evenly by 1 and 41 only so it is not a
composite number, it's a prime number