Level 169: Lucky Seven Stack
Optimal: 4
digits
Target Number
91
Solo Digit: 7
0
Waiting for input
Digits Used: 0
In Level 169, your challenge is to reach the target number 91 using only the solo digit 7. The optimal solution requires exactly 4 digits.
Notice how close 91 is to multiples, factorials, or powers of 7. If direct multiplication or division leaves a remainder, look for ways to generate 7 / 7 = 1 or (7 - 7) = 0 to fine-tune your final total.