Find at least 10 pairs of co-primes from the given numbers.
12,15,27,36,17,25,32,49,111,121,13.
Which of the following numbers are co-prime?
(a) 18 and 35 (b) 15 and 37 (c) 30 and 415
(d) 17 and 68 (e) 216 and 215 (f) 81 and 16
Question 5 (d)
Which of the following numbers are co-prime: 17 and 68