Fixed warning in the isPrime() util method
Fixed warning in the isPrime() util method

codeaudit/myriad-toolkit,TU-Berlin-DIMA/myriad-toolkit,TU-Berlin-DIMA/myriad-toolkit,codeaudit/myriad-toolkit,codeaudit/myriad-toolkit,codeaudit/myriad-toolkit,TU-Berlin-DIMA/myriad-toolkit