Problems & Puzzles: Puzzles

Puzzle 1096 37 & 73 coming from 10 JM Bergot sent the following nice puzzle: For composite 10, the sum from 1 to 10 is 55, and the sum of the divisors of 10 is 18, giving 55-18=37 and 55+18=73. 37 & 73 are emirps. Q. Can you find other emirps from a composite larger than 10?

---

On July 30, 2022 Michael Branicky wrote:

None < 373000000 as of now.

Later he wote: I kept searching and found no other such composite <= 10^9.
Stopping there.

***