Question

which of the following pairs of numbers are coprime?
9 and 6
25 and 420​

Answer 1

Answer:

the answer is

Step-by-step explanation:

25 and 420

hope it's helpful

Answer 2

Answer:

_______________________

QUESTION

_______________________

which of the following pairs of numbers are coprime?

9 and 6

9 and 625 and 420

_______________________

ANSWER

______________________

9and 6

all possible factors of 9 are 1,3 and 9.

all possible factors of 16 are 1,2, 4,8 and 16

clearly one is the only common factor of 9 and 16 therefore 9 and 16 are coprime.

_________________________

25 and 420

all possible factors of 25 are 1,5 and 25.

all possible factors of 420 are 1,23,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210 and 240.

clearly 25 and 420 have common factors other than one therefore 25 and 420 are not co- Prime

________________________