Question

Which of the following numbers are coo prime.
a) 18 & 35
b) 15 & 37
c) 30 & 415
d) 17 & 68
e) 216 & 215
f) 81 & 16​

Answer 1

Answer:

d is the current answer

Step-by-step explanation:

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Answer 2

Answer:

18 &35

15& 37

81&16

Step-by-step explanation:

factors of 18 = 1,2,3,6,9,18

factors of 35=1,5,7,15

These numbers has 1 as common factor so these are co primes

2. factors of 15 = 1,3,5,15

factors of 37=1,3,7

These numbers has 1 as common factor so these ar co primes

3. factors of 81=1,3,9,27,81

factors of 16=1,2,4;8,16

These numbers has 1 as common factor so these are co primes.