\(=10^{97}.\left(10+100+1000\right)\)
\(=10^{97}.2.555\)
=> dpcm
1098 + 1099 + 10100 ⋮ 555
Ta có : 1098 + 1099 + 10100 = 1097 x 101 + 1097 x 102 + 1097 x 103
= 1097 x (10 + 102 + 103)
= 1097 x 1110
= 1097 x 555 x 2
Vì 555 ⋮ 555 => 1097 x 555 x 2 => 1098 + 1099 + 10100 ⋮ 555
k nha bn !