jawaban no 4 dan caranya pliss

cri KpK nya:
(10,20,30,40,50,60,70,80,90,100,110,120,130,140,150,160,170,180,190,200,210,220,230,240)
(12,24,36,48,60,72,84,96,108,120,132,144,156,168,180,192,204,216,228,240)
(16,32,48,64,80,96,112,128,144,160,176,192,208,224,240)
KPK nya = 240