Clive seems to have got a little confused on prime factors, HCF and LCM.
His homework involves five questions, all of which he has got wrong. Can you help explain where he’s gone wrong? This activity is designed to create mathematical discussion.
Andy Lutwyche is a purveyor of mathematics and a producer of resources, more of which you can find on his TES shop. You can also follow him on Twitter at @andylutwyche.