Gary is thinking of a number.
He says,
"My number is prime and it is a factor of 36"
There are two possible numbers Gary can be thinking of.
Verify that the two possible numbers Gary can be thinking of are 2 and 3.
245 exam-style questions on Edexcel GCSE Maths Factors and Multiples. Each one has a worked solution and a mark scheme showing where the marks go.