Many of you used factoring programs. Some of the solvers didn't even notice that two has a common factor.
We meant you to solve it using the GCD algorithm on all pairs, thereby discovering a common factor, and then reading the factors as ASCII strings:
The factorization of the three numbers is as follows:
The common factor is a hint: reversing the string we get a factor of the third number
n3 = 3076048694171659720381726519691214280505664619002804392489 *
= '}sretcarahc eht esreveR)' * 'PonderThis Apr 2017_'
Armin Krauß was the first to send us the ASCII strings and got a second '**' for that.