I'm very weak in proving something related to real numbers.I dont face problem in proving geometric proofs but in proving something like this i am just blank-**prove that any two consecutive natural nimbers are co-prime** .I understand what this sentence means but if someone says me to prove this I become totally blank.
So please help me

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TopNewestCoprime means the gcd of the 2 numbers is one. So the question is asking you to prove that if 2 numbers are consecutive, their only common factor is 1. This is how you do a proof: you write what has to be proved (write RTP- this stands for 'required to prove'), write your working (including dialogue so the reader can understand) and when you have finished your proof, you write Q.E.D. This stands for quad eras demonstratum, which is latin for 'which was to be proved'.

RTP: Any two consecutive natural numbers are co-proime.

Proof: Let the 2 consecutive integers be n and n+1. Frist, find the gcd of n and n+1. Call this gcd(n,n+1) By the ecludian algorithm, gcd(n,n+1) = gcd(n, n+1-n) = gcd(n,1) But the greatest common divisior of any integer and 1, i.e. they are coprime. Thus, any two consecutive natural numbers are co-proime. Q.E.D. – Shiva Jayabalan · 1 year, 11 months ago

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gcd=(n,n+1-n)? – Aman Real · 1 year, 11 months agoLog in to reply

In this case, the larger number is n+1, and the difference with the smaller number is n+1-n=1, so it is the same as the gcd(n,1). Which is always 1. – Shiva Jayabalan · 1 year, 11 months ago

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Co-prime means that the two numbers dont have any common factor other than 1 or their gcd is 1 – Aditya Chauhan · 1 year, 11 months ago

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@calvin sir help me – Aman Real · 1 year, 11 months ago

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