Level 311: One-derful Addition
Optimal: 4 digits
Target Number

13

Solo Digit: 1
Waiting for input
Digits Used: 0

Level 311 Overview & Strategy

Easy

In Level 311, your challenge is to reach the target number 13 using only the solo digit 1. The optimal solution requires exactly 4 digits.

Solo Digit: 1
Target Goal: 13
Optimal Length: 4 digits
Allowed Operations: + − × ÷ ^ ! √ ( )

Solving Tip

Notice how close 13 is to multiples, factorials, or powers of 1. If direct multiplication or division leaves a remainder, look for ways to generate 1 / 1 = 1 or (1 - 1) = 0 to fine-tune your final total.