[ (2((17))^(-1)(10^((17)-1) -1)), (2((37))^(-1)(10^((37)-1) -1)), (2((137))^(-1)(10^((137)-1) -1)), (2((977))^(-1)(10^((977)-1) -1)) ] mod360

Uh oh! Wolfram|Alpha doesn't run without JavaScript.

Please enable JavaScript. If you don't know how, you can find instructionshere.Once you've done that, refresh this page to start using Wolfram|Alpha.