Level 869: Four-Sight Frenzy
Optimal: 7 digits
Target Number

6407

Solo Digit: 4
Waiting for input
Digits Used: 0

Level 869 Overview & Strategy

Advanced

In Level 869, your challenge is to reach the target number 6407 using only the solo digit 4. The optimal solution requires exactly 7 digits.

Solo Digit: 4
Target Goal: 6407
Optimal Length: 7 digits
Allowed Operations: + − × ÷ ^ ! √ ( )

Solving Tip

Notice how close 6407 is to multiples, factorials, or powers of 4. If direct multiplication or division leaves a remainder, look for ways to generate 4 / 4 = 1 or (4 - 4) = 0 to fine-tune your final total.