Question

gaseste numerele de forma abc sau ancd verifica egalitatea:abc+bca+cab=666

Answer 1

100a+10b+c+100b+10c+a+100c+ 10a+b= 666

111a+111b+111c=666

a+b+c=6

ABC={0,1,5;0,5,1;1,0,5;1,5,0;2,3,1;2,1,3;1,2,3}