21*53 or 2*53 since the power 1 is rarely expressed.
250 = 2x5x5x5
5,200 in standard index form = 5.2 × 103
2.9 million in standard index form = 2.9 × 106
1250 in standard index form = 1.25 × 103
7 x 7 x 7 is the expanded form of 343. The proper index form of this exponent would be73
2x5x5x5
250 = 2x5x5x5
2 x 3 x 5 to the second power
"index" is the singular form - "indices" is the plural :)
The possessive form of the singular noun index is index's.
indices or indexes
The plural form for the noun index is indexes.
40.000000 in standard index form is 4.0 × 101
Index form of 9765625 is 9.765625 × 106
5,200 in standard index form = 5.2 × 103
8890 in standard index form = 8.89 × 103
The singular is the noun "index".