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NumFactors
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Written by Troy Benoist   


;Summary: Routine to determine the number of factors for a 16-bit value
;Compatibility: All DOS versions/8088+ instructions
;Notes: 22 BYTES               Input: AX = Value to check for number of factors
;       * If CX is 2, check value in AX is prime.
    mov bx,1        ;Test=1 (Test is the testing value of each theoretical
                    ;factor of AX, from 1-AX).
    xor cx,cx       ;Count=0 (Count is running total with # of factors for AX).
ChkFctr:
    xor dx,dx