Question

3. If a and b are co primes which of
these is true? *
oLCM (a, b) =aXb
OHCF (a, b)= axb
O a=br
O None of these​

Answer 1

Step-by-step explanation:

If a and b are prime numbers,

they do not have any common

factor.

a=1×a

b=1×b

HCF of a and b = 1.

Their LCM =1×a×b

LCM of a and b =