portrait: 35

35 is the 10th discrete semiprime ( 5 × 7 {\displaystyle 5\times 7}) and the first with 5 as the lowest non-unitary factor, thus being the first of the form (5.q) where q is a higher prime. 35 has two prime factors, (5 and 7) which also form its main factor pair (5 x 7) and comprise the second twin-prime distinct semiprime pair. The aliquot sum of 35 is 13, within an aliquot sequence of only one composite number (35,13,1,0) to the Prime in the 13-aliquot tree. 35 is the second composite number with the aliquot sum 13; the first being the cube 27.