Question

1 Identify the numbers which are co-primes to the first number in the row.
a 63, 27, 93, 43, 23, 33, 53
b 85, 70, 17, 51, 16, 21, 34


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Answer 1

Answer:

27 it is right answer OK now

Answer 2

Answer:

Hi,

two numbers is co prime if they do not have any common factor other than 1 63 = 3×3×7 and 27, 93, 33 has common factor 3 with 63 so they are not co primne with 63 but rest 43, 23, 53 are co prime with 63 similalry try second for your practice