Q.1.
Which of these is not a factor of 60?
Q.2.
Which of these is a factor of 70?
Q.3.
Is 4 a factor of 21?
Q.4.
Which of these is a factor of 66?
Q.5.
A number which divides exactly into two other numbers is what sort of factor of those numbers?
Q.6.
Which of these is not a factor of 80?
Q.7.
Which of these sets of numbers are not all factors of 100?
Q.8.
Which of these sets of numbers are all factors of 80?
Q.9.
Which of these is a factor of 33?
Q.10.
Which of the following is a factor pair of 32?