Ta có: \(2^{248}=\left(2^8\right)^{31}=256^{31}\)
\(3^{155}=\left(3^5\right)^{31}=243^{31}\)
\(256^{31}\)lớn hơn \(243^{31}\)nên \(2^{248}\)lớn hơn\(3^{155}\)
\(2^{248}=\left(2^8\right)^{31}\)
\(3^{155}=\left(3^5\right)^{31}\)
Ta có:256^31 và 243^31
=>256>243
=>256^31>243^31 hay 2^248>3^155