(iv) Let be an odd prime number and let r be the rational number 1 r = 1+ 2 1 1 + +... 3 Prove that divides the numerator of r. (We assume that the rational number r is given in reduced form, i. e. numerator and denominator have no common factors.)

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(iv)
Let p be an odd prime number and let r be the rational number
1
r =1+
1
1
3
1
Prove that p divides the numerator of r. (We assume that the rational number r is given in
reduced form, i. e. numerator and denominator have no common factors.)
Transcribed Image Text:(iv) Let p be an odd prime number and let r be the rational number 1 r =1+ 1 1 3 1 Prove that p divides the numerator of r. (We assume that the rational number r is given in reduced form, i. e. numerator and denominator have no common factors.)
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