Question

Which of the following pairs of numbers are co-prime? a) 24, 30 b) 27, 45 c) 63, 72 d) 18, 25​

Answer 1

Answer:

d) 18,25

Step-by-step explanation:

18 , 25 are coprime number because only 1 is the number which is common in both.

18- 1 x 2 x 3 x 3.

25-1 x 5 x 5 .

common in both - 1. so it is co-prime number.