Question

descompune in factori primi numerele a)21,30,45,51; b)120,144,180,210; c)1001,1331,2480,5880 va rog din suflet e urgent va rog eu!!

Answer 1

21:7=3:3=1
30:3=10:5=2:2=1
45:3=15:3=5:5=1
120:5=24:3=8:2=4:2=2:2=1
144:2=72:3=24:3=8:2=4:2=2:2=1
180:3=60:3 =20:5=4:2=2:2=1
210:7=30:3=10:5=2:2=1

la celelalte nu stiu