Made small improvements and shortened prime_check.py#3454

Merged

poyea merged 3 commits intoTheAlgorithms:masterfrom

Rolv-Apneseth:improve-prime_check.py

Oct 23, 2020

Commits on Oct 17, 2020

Commits on Oct 22, 2020

Ran black and isort
Rolv-Apneseth
committed