F - Prime and Composite Numbers
20 Questions
1
1 is a prime number.
2
2 is a prime number.
3
3 is a prime number.
4
7 is a prime number.
5
9 is a prime number.
6
Choose the prime numbers.
7
Choose the prime numbers.
8
Choose the prime numbers.
9
Choose the prime numbers.
10
Which one is a composite number?
11
Which one is a composite number?
12
Chose the prime factors of 20.
13
Chose the prime factors of 30.
14
Find the prime factors of 45.
15
Find the prime factors of 36.
16
How many prime factors does 40 have?
17
How many prime factors does 60 have?
18
How many prime factors does 70 have?
19
How many prime factors does 81 have?
20
How many prime factors does 210 have?