The correct option is C 256
We know that, the product of the numbers will be equal to the product of LCM and HCF os the numbers.
If a and b are the two numbers, then,
a×b=LCM(a,b)×HCF(a,b).
Given: a = 16, b = 256, HCF (16, 256 ) = 16
To find : LCM (16, 265)
⇒16×256=16×LCM(16,256)LCM(16,256)=16×25616=256
Hence, the LCM (16, 256) = 256.