<TABLE> <S> <C>
<ARTICLE> 6
<SERIES>
<NUMBER> 271
<NAME> PRIME RESERVES FUND
<S> <C>
<PERIOD-TYPE> YEAR
<FISCAL-YEAR-END> JUL-31-2000
<PERIOD-END> JUL-31-2000
<INVESTMENTS-AT-COST> 4,312,195,780
<INVESTMENTS-AT-VALUE> 4,312,195,780
<RECEIVABLES> 117,913,241
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 4,430,109,021
<PAYABLE-FOR-SECURITIES> 96,081,996
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 3,958,736
<TOTAL-LIABILITIES> 100,040,732
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 4,330,068,289
<SHARES-COMMON-STOCK> 4,330,068,289
<SHARES-COMMON-PRIOR> 4,250,399,059
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 4,330,068,289
<DIVIDEND-INCOME> 253,631
<INTEREST-INCOME> 258,162,502
<OTHER-INCOME> 0
<EXPENSES-NET> 40,209,785
<NET-INVESTMENT-INCOME> 218,206,348
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 218,206,348
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 218,206,348
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 24,906,196,879
<NUMBER-OF-SHARES-REDEEMED> 25,052,639,806
<SHARES-REINVESTED> 226,112,157
<NET-CHANGE-IN-ASSETS> 79,669,230
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 15,722,584
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 40,209,785
<AVERAGE-NET-ASSETS> 4,380,000,249
<PER-SHARE-NAV-BEGIN> 1.00
<PER-SHARE-NII> 0.05
<PER-SHARE-GAIN-APPREC> 0
<PER-SHARE-DIVIDEND> (0.05)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 1.00
<EXPENSE-RATIO> 0.92
</TABLE>
