little confused as to what this is asking: Let P be the set of primes and define a relation R from P to N (the natural numbers) by pRn if and only if p|n. Find all the primes p such that pR126. Find all n such that 3Rn.
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Originally Posted by thecleric Let P be the set of primes and define a relation R from P to N (the natural numbers) by pRn if and only if p|n. Find all the primes p such that pR126. Find all n such that 3Rn. List all prime numbers . Which of those divide 126?
alternatively write out the prime factor decomposition for 126. so looks like 2, 3, 7 For the second one its just all natural numbers of the form 3n
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