Post History
#1: Initial revision
by
snail_
·
2021-08-10T07:54:33Z (over 3 years ago)
# [Ruby], 16 bytes
```ruby
->n{n**0.5%1==0}
```
[Try it online!][TIO-ks5rozud]
[Ruby]: https://www.ruby-lang.org/
[TIO-ks5rozud]: https://tio.run/##KypNqvyfZvtf1y6vOk9Ly0DPVNXQ1tag9n9BaUmxQpqeRnpqSbFeSX58puZ/EwA "Ruby – Try It Online"