Which pair of numbers is relatively prime? a. 105 and 128 b. 130 and 273 c. 205 and 350 d. 273 and 333

A. 105 and 128

Step-by-step explanation:

We know that,

'Relatively prime numbers are the numbers having 1 as the only common factor'.

According to the options,

A. 105 and 128: The only common divisor of these numbers is 1.

B. 130 and 273: They have 13 as a common factor other than 1.

C. 205 and 350: They have 5 as a common factor other than 1.

D. 273 and 333: They have 3 as a common factor other than 1.

Thus, the only pair of numbers which are relatively prime are 105 and 128.

what chart am i supposed to follow?