Factors
List all the factors of 12.
1, 2, 3, 4, 6, 12
What are the first 6 multiples of 3?
3, 6, 9, 12, 15, 18
What are the prime factors of 10?
2 x 5
2, 3, 4, 5, 6, 7, 8, 9
2,3,5,7
Which is a square number?
2 4 7 10
4
List all the factors of 10.
1, 2, 5, 10
What are the first 4 multiples of 6?
6, 12, 18, 24
What are the prime factors of 16?
2 x 2 x 2 x 2
Is 31 a prime or composite number?
Prime
16
List all the factors of 14.
1, 2, 7, 14
What are the first 4 multiples of 45?
45, 90, 135,180
What are the prime factors of 45?
3 x 3 x 5
Composite
What is the Highest Common Factor of 4 and 7?
1 (they have no other factors in common)
List all the factors of 30.
1, 2, 3, 5, 6, 10, 15, 30
What are the first 5 multiples of 21?
21, 42, 63, 84, 105
What are the prime factors of 54?
2 x 3 x 3 x 3
Is 19 prime or composite?
Prime
What is the Lowest Common Multiple of 4 and 6?
12
List all the factors of 60
1,2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
What are the first 5 multiples of 32?
32, 64, 96, 128, 160
What are the prime factors of 72?
2 x 2 x 2 x 3 x 3
Which of the following numbers are composite?
41, 42, 43, 44, 45, 46, 47, 48, 49, 50
42, 44, 45, 46, 48, 49, 50
What is the highest common factor of 24 and 36?
12