# IntegerLength

• IntegerLength[123456]

• IntegerLength[10^10000]

• IntegerLength[-10^1000]

IntegerLength with base 2:

• IntegerLength[8, 2]

Check that IntegerLength is correct for the first 100 powers of 10:

• IntegerLength /@ (10 ^ Range[100]) == Range[2, 101]

The base must be greater than 1:

• IntegerLength[3, -2]