Here is a list of numbers.
3 5 7 11 12 16 19 28
From the numbers on the list,
write down a multiple of 3 other than 3
write down a factor of 28 other than 28
write down whether 3, 5 and 19 are prime numbers.
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.