FILE NO. 333-28537 RULE 424(B)(3) PROSPECTUS SUPPLEMENT (TO PROSPECTUS DATED JULY 7, 1997) (TO PROSPECTUS SUPPLEMENT DATED JULY 7, 1997) PROSPECTUS NUMBER: 1585 DATED: SEPTEMBER 24, 1997 MERRILL LYNCH & CO., INC. MEDIUM-TERM NOTES, SERIES B DUE NINE MONTHS OR MORE FROM DATE OF ISSUE FLOATING RATE NOTES
BASE RATE: T-Bill INDEX MATURITY: Six Month TRADE DATE: September 24, 1997 SETTLEMENT DATE: September 26, 1997 MATURITY DATE: October 6, 1998 REDEMPTION DATE: N/A OPTIONAL REPAYMENT DATES: N/A SPREAD: 0.380% (plus thirty eight bps) SPREAD MULTIPLIER: N/A MAXIMUM INTEREST RATE: N/A MINIMUM INTEREST RATE: N/A INTEREST RESET DATES: Weekly INTEREST PAYMENT DATES: April 6, 1998 and Maturity, subject to Following Business Day Convention. INITIAL INTEREST RATE: 5.62000% FORM: Book-entry