Which of the following pairs represents the co-prime numbers?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. (15, 94).
(15, 141)
⇒ 15 = 3 × 5
⇒ 141 = 3 × 47
3 is common in (15, 141) so, it is not a co-prime number
(15, 94)
⇒ 15 = 3 × 5
⇒ 94 = 2 × 7
No common factor in (15, 94) so, it is a co-prime number
(15, 235)
⇒ 15 = 3 × 5
⇒ 235 = 5 × 47
5 is common in (15, 235) so, it is not a co-prime number
(51, 141)
⇒ 51 = 3 × 17
⇒ 141 = 3 × 47
3 is common in (51, 141) so, it is not a co-prime number
Hence, Option 2 i.e. (15, 94) are co-prime numbers