Tabit ibn qorra (826 - 901) invented the following rule for finding amicable numbers if p = 3 2^n - 1 q = 3.2^n - 1 - 1 r = 9.2^2n - 1 - 1 are three prime numbers, then 2^n pq and 2^n r are pair of amicable number can you give two pairs of amicable numbers bigger than 100 using qorra's rule.