A list consists of the following pairs of numbers: $41, 43; 51, 53; 61, 63; 65, 67; 71, 73; 93, 95$ . Categorise them as pairs of twin primes, co-primes, and composite numbers.

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Solution

co-primes:-Two numbers are said to be co-prime if they do not have any common factor other than $1$
composite numbers:-A number is said to be a composite number if it has at least one factor other than 1 and the number itself.
Twin prime:-Pairs of prime numbers having a difference of $2$ are called twin primes.
Twin prime: co-primes: composite numbers:
$41, 43$ $41, 43$ $93, 95$
$61, 63$ $71, 73$
$71, 73$

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Twin prime:	co-primes:	composite numbers:
$41, 43$	$41, 43$	$93, 95$
$61, 63$	$71, 73$
$71, 73$

A list consists of the following pairs of numbers: 41,43;51,53;61,63;65,67;71,73;93,95. Categorise them as pairs of twin primes, co-primes, and composite numbers.

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