Numbers having factors 1 and itself are called ______ numbers.
prime
composite
A prime number has 1 and itself as factors.
For example,
3=1×3
13=1×13
29=1×29
Therefore, 3, 13, 29 are prime numbers and have no other factors except 1 and itself.
Natural numbers having factors in addition to one and itself are called ______ numbers.