Question

If a and b are co-primes, then their LCM is

Options

• 1

• `a/b`

• ab

• none of these

Answer 1

ab
If a and b are co-primes then their LCM will be ab.
For example, 4 and 9 are co-primes.
L.C.M. of 4 and 9 is 4×9.