Question

which of following are co-primes? a. 4,10..b.16,20...c.9,10​

Answer 1

Answer:

c 9,10

Step-by-step explanation:

Co prime numbers are those number which have only one factor in common that is 1

In the two cases A and B they have factors rather then themselves but in the third case C they have only one common factor which is 1

So the correct answer is 9,10

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