Is it prime or composite?
2
Prime
47
Prime
15
Composite
13
Prime
1 is a composite number.
False
76
Composite
23
Prime
18
Composite
7
Prime
A prime number always only has 2 factors, which are 1 and itself.
True
71
Prime
14
Composite
59
Prime
21
Composite
All composite number has only 4 factors.
False
83
Prime
89
Prime
30
Composite
27
Composite
17 is composite.
False
100
Composite
33
Composite
49
Composite
39
Composite
61, 67, & 65 are all prime numbers
False