so there are no actual formula? But there are multiple right answers to the previous question about the ages. and I need them all.
Well, I suppose you could have one child who is 1; in which case you could have 1, 13 and 35; 1, 5 and 91; and 1, 7 and 65.
The other numbers that appear above are various combinations of the prime factors 5, 7 and 13 (e.g. 35 is 5*7; 91 is 7*13).