87 in Go and in Racket. http://git.debu.gs/gitweb/?p=euler;a=commitdiff;h=1448a06114b0ac9c71a4830e5dfcfae6ac405473 code, git.debu.gs | 2018-07-05 20:27:14 +0000 GMT | No.780 87 in Go and in Racket. [DH] go/087.go [DH] racket/087.rkt