How to find a good programmer?

To find an intelligent programmer, the Odessa company placed its vacancy on a billboard , encrypting it with php-code.
I must say that the billboard was like in a place of special concentration of traffic jams. Judging by the reaction of bloggers, programmers are interested.

At one time, Google Inc. placed on a billboard a mathematical formula, deciding which the applicant found the address of the website on which the chain of puzzles continued. And the following phrase was written on the shield: {The first 10-digit prime number found in the sequence of digits e} .com.
Needless to say, this puzzle caused a flurry of emotions among programmers and mathematicians and prompted the people to solve the puzzle. The correct answer was a completely simple number 7427466391, adding to which the suffix “com” we received the site address 7427466391.com and ... got to the second level!

The new message said: “Congratulations! You have reached level 2. Now go to www.linux.com , enter Bobsyouruncle as your login and answer this calculation as a password:
f (1) = 7182818284
f (2) = 8182845904
f (3) = 8747135266
f (4) = 7427466391
f (5) = __________ "
The most persistent mathematicians decided this curious rebus and discovered the secret - in this way Google is looking for staff - the best engineers for their corporation! What to say - recruiters have tried! After all, they even attracted to the solution those mathematicians who were not going to work at Google!