Determine the LCM and GCD of the following pairs of integers and verify that LCM \(\times\) GCD \(=\) product of the two numbers.
 
LCM of \(81\) and \(155=\)
 
GCD of \(81\) and \(155=\)
 
Product of two numbers \(=\)
 
LCM \(\times\) GCD\(=\)
 
From (1) and (2) LCM\( \times\) GCD Product of the two numbers.