The prime numbers between 10 and 20 are
11, 15, 17, 19
11, 13, 17, 19
11, 16, 17, 19
11, 13, 19
Which of the following is a prime number?
21
29
33
45
If two prime numbers have only one number between them, then they are called
Prime numbers
Composite numbers
Twin prime numbers
Even numbers
Which of the following is a composite number?
19
23
43
55
Even numbers are exactly divisible by
2
4
0
3
Numbers that have only two factors are called ________ numbers.
Even
Odd
Prime
Composite
Least prime number is
1
Which of the following is co-prime numbers
6, 9
8, 12
4, 9
10, 15
13 is a _________ number.
None of these
Numbers that have more than two factors are called _________ numbers.
