1 Find the first three multiples of each number.
b 15
a 12
C 32
2 From the numbers in the box, find:
a a multiple of 10
c a common factor of 27 and 36
3 List all the prime numbers between 40 and 50.
4 Which of the numbers in the box is:
a a multiple of 2
b a multiple of 5
c a common multiple of 2 and 5
d a factor of 500
e a prime number
f a common multiple of 2 and 3?
d 50
b two factors of 24
d a prime number.
F a common multiple of 2 and 5