Question

Question 5 (b)

Which of the following numbers are co-prime:
15 and 37

Answer 1

Two numbers having only 1 as a common factor are called co-prime numbers
Factors of 15 = 1, 3, 5, 15
Factors of 37 = 1, 37
Common factor = 1
Since both have only one common factor i.e. 1, therefore, they are co-prime numbers.