5x3x29
Prime
103 is a prime number.
1 is a prime number.
It is a composite number.
85 is composite.
21 is a composite number.
21 is a composite number.
75 is a Composite Number.
63 is a Composite Number.
180 is a Composite Number.
compostie
It is definitely a PRIME number, because it has only two factors viz; 1 & 13.