Question

If the product of two co-prime numbers is $117$, then the LCM should be

• A. $1$
• B. $117$
• C. equal to their HCF
• D. Lies between $115$ to $120$

Answer 1

Answer: (B), (D)

$117$
Lies between $115$ to $120$

Co-prime numbers are the numbers which do not have any prime factor in common and if there is no common factor, then HCF is $1$.
Product of numbers $=LCM\times HCF=LCM=117$
So, options B and D are correct as $117$ lies between $115$ and $120$.