Question

Example for co-prime numbers is

• A. $27,14$
• B. $18,16$
• C. $9,18$
• D. $11,77$

Answer 1

Answer: (A)

$27,14$

The two numbers which have only $1$ as their common factor are called co-primes.
Out of the given pair of numbers,
Factors of $27$ are $1,3,9,27$
Factors of $14$ are $1,2,7,14$
Their common factor is $1$.
Hence $25,14$ are co-prime numbers.