Build this number:
36
Your product: 1
Your factorisation:
Tap a prime below to start...
A target number is shown — build it by tapping primes
Each tap multiplies into your running product
Wrong taps cost a life — you only get 3!
After question 3, the product display is hidden
Example: 60 → tap 2, 2, 3, 5 → 2×2×3×5 = 60 ✓