Nebraska Furniture Mart (NFM) is considering a zero-coupon bond issue to raise $500 million in order to build the new NFM store to be located in Dallas, TX. Assuming NFM issues individual bonds with a par value of $1,000 and with a maturity of 25 years, approximately how many bonds will NFM have to issue in order to raise the $500 million if investors demand a yield to maturity of 13%? (Assume semiannual compounding)