Question

a) si b) sunt exemplele.Va rog mult nu inteleg !

Answer 1

descompunerea numarului in factori primi
56=8*7=$2^{3}$*7
117=9*13=$3^{2}$*13
285=3*5*19
520=8*5*13=$2^{3}$*5*13
820=4*5*41=$2^{2}$*5*41

Answer 2

56 = 8*7 = $2^{3}$*7
117 = 9 *13 = $3^{2} * 13$
285 = 15*19 = 5*3*19
520 = 52 *10 = 4*13*2*5 = $2^{3} *5*13$
820 = 82*10 = 2*41*2*5 = $2^{2} *41*5$