write three pairs of co primes between 15 to 30 ? ( answer with explanation and step by step )
muralikrithi:
please answer step by step with explanation
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(17,19),(19,23),(23,29)
⇒and the gcd of both numbers should be 1
⇒they may be consecutive numbers ex:- 15,16
⇒they may be prime ex:-17,19
⇒they may be composite numbers ex:-18,25
⇒and the gcd of both numbers should be 1
⇒they may be consecutive numbers ex:- 15,16
⇒they may be prime ex:-17,19
⇒they may be composite numbers ex:-18,25
gcd
gcd???
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