Maths Dictionary · SS 1
Index (power)
Also called: power, exponent (plural: indices)
Simple meaning
The small raised number that says how many times to multiply the base by itself.
Example
In 25, the index is 5: 2 × 2 × 2 × 2 × 2 = 32.
See it
From the Laws of Indices lesson. Try moving things around.
222
×
2222
↓ all together: 7 factors
222
2222
23 × 24 = 23 + 4 = 27 = 128
m (first index)
3
n (second index)
4