University of Illinois, Urbana-Champaign

**Topic: User Friendliness,
**** adding prompts to the program**

**February 4,
2016**

`
PRINT "Please enter a number to see if it is a prime:"
INPUT number
prime$ = "True"
divisor = 2
WHILE divisor < number
intermediate = number
WHILE intermediate >= divisor
intermediate = intermediate - divisor
WEND
remainder = intermediate
IF remainder = 0 THEN
prime$ = "False"
END IF
divisor = divisor + 1
WEND
IF print$ = "True" THEN
PRINT number; " is a prime."
ELSE
PRINT number; " is not a prime."
END IF
`

University of Illinois, Urbana-Champaign