The aliquot sum of sixty-nine is 27 within the aliquot sequence (69,27,13,1,0) 69 being the third composite number in the 13-aliquot tree.
69 is a semiprime. Furthermore, since the two factors of 69 are both Gaussian primes, 69 is a Blum integer.
Adding up the divisors of 1 through 9 gives 69.
This my friends, is why we are printmakers!
No comments:
Post a Comment