<PAGE>
Rule 424(b)(2)
Registration No. 33-25574
PRICING SUPPLEMENT NO. 64 DATED 10-20-93
-- --------
(To Prospectus Dated March 22, 1989, as supplemented
by Prospectus Supplement Dated September 26, 1990)
FIRST BANK SYSTEM, INC.
MEDIUM-TERM NOTES, SERIES C
<TABLE>
<S> <C>
Principal Amount: 35,000,000 Issue Price (Dollar Amount and Percentage of Principal Amount:
---------- $35,000,000/100%
----------------
Date of Original Issue: 10-25-93 Interest Rate/Initial Interest Rate: To be determined 10-21-93
-------- ---------------------------------------------
Maturity Date: 7-25-94 Interest Payment Dates: Monthly-3rd Wednesday-beginning 11-17-93
------- ----------------------------------------------------------
Interest Rate Basis (and, if Regular Records Dates: Fifteenth calendar day before each interest payment date
applicable, related -----------------------------------------------------------
Interest Periods):
/ / Fixed Rate Notes Interest Determination Dates: 2 business days prior to interest reset date
----------------------------------------------------
/ / Commercial Paper Rate Note Interest Reset Dates: 3rd Wednesday ea. month beginning 11-17-93
------------------------------------------------------------
/ / Federal Funds Rate Note Index Maturity: One month
------------------------------------------------------------------
/X/ LIBOR Note Spread: N/A
--------------------------------------------------------------------------
/ / Prime Rate Note Spread Multiplier:
---------------------------------------------------------------
/ / Eleventh District Alternative Rate Event Spread:
of Funds Rate Note ---------------------------------------------------
/ / CD Rate Note Alternative Rate Event Spread Multiplier:
----------------------------------------
/ / Treasury Rate Notes Maximum Interest Rate:
-----------------------------------------------------------
/ / Other Base Rate Minimum Interest Rate:
(as described below) -----------------------------------------------------------
/ / Zero Coupon Note
Redemption Terms For Original Issue Discount Notes:
Original issue discount: %
---------------------------------------------------------
Yield to Maturity: %
---------------------------------------------------------------
Original issue discount
applicable to short
accrual period: %
-----------------------------------------------------------------
Method used to determine yield to maturity
Applicable to short accrual period:
/ / Approximate
/ / Exact
Other Terms: Original Issue Discount Notes:
/ / Subject to special provisions set forth
therein with respect to the principal
amount thereof payable upon any redemption
Agents Commission or acceleration of the maturity thereof.
.037 / / For Federal income tax purposes only.
Is the record or beneficial owner a California
resident?
Yes No X
---------- ----------
KDN 10-19-93
</TABLE>
