Brain Test 4 Level 340
Tap on 6 prime numbers Answer
Tap on 7, 3, 5, 11. Then, drag the 5 of 75 to the right to split it. Now, tap on the new 5 and 7 to complete six prime numbers.
Follow the screen sequence
Use the images as a compact replay of the solving path. The text below each frame explains what should change.
Video walkthrough
Same number in other versions
Brain Test versions can reuse the same level number with a different puzzle. If the screenshot or question does not match your game, switch to the same number in another version or use the nearby level links.
Strategy guide
- 1.First tap obvious primes: 7, 3, 5, 11;
- 2.Drag the 5 from 75 to split it into separate digits;
- 3.Tap the new 5 and 7 after splitting to reach six primes.
Common mistakes
- 1.Tapping only visible numbers without considering splitting 75;
- 2.Missing that 5 appears twice after splitting 75;
- 3.Forgetting 11 is prime and overlooking it among the numbers.
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