A = 12347 . 12345
A = ( 12346 + 1 ) . 12345
A = 12346 . 12345 + 12345
B = 12346 . 12346
B = 12346 . ( 12345 + 1 )
B = 12346 . 12345 + 12346
=> A < B
\(A=12347.12345\)
\(A=\left(12346+1\right)+12345\)
\(A=12346.12345+12345\)
\(B=12346^2\)
\(B=12346.\left(12345+1\right)\)
\(B=12346.12345+12346\)
\(\Rightarrow A< B\)