$$\text { If } \operatorname { GCD } ( a , b ) = 1 \text {, then } \operatorname { LCM } ( a , b ) = a b$$

True/False

$$\text { If } \operatorname { GCD } ( a , b ) = 1 \text {, then } \operatorname { LCM } ( a , b ) = a b$$