Which pair of number is co-prime?
(A) 8,9
(B) 6,8
(C) 10,12
(D) 5,7
suraj7726:
Can you please explain it ?
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hey mate
here is the answer..
Answer:
(A)-8,9
(B)-5,7
co prime-the number which does have more than 1 common factor.that is their HCF is 1.
two consecutive numbers are always co prime.
two prime numbers are always co prime.
Thank you ! But I am confused . How can 5,7 be co-prime ? Please clear my doubt.
5,7 both are prime so they must be co prime also
But 5,7 are twin prime.
yes, two natural numbers are said to be coprimes.if there HCF is 1.
But the HCF of 8,9 also 1.
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