Hints for SUM #49

Difficulty: Hard

Spoiler-safe hints for the SUM puzzle of November 5, 2026. Each hint is hidden until you open it; the answer stays hidden until you ask for it.

Hint 1

Target 1 (52): start with 1 + 12 = 13

Hint 2

Target 2 (179): start with 19 − 4 = 15

Hint 3

Target 3 (551): start with 1 + 4 = 5

The answer

Contains the answer. Open only if you are stuck.

1 · 2 · 4 · 12 · 19

  • Target 1: 521 + 12 = 13 · 4 × 13 = 52
  • Target 2: 17919 − 4 = 15 · 12 × 15 = 180 · 180 − 1 = 179
  • Target 3: 5511 + 4 = 5 · 2 × 12 = 24 · 5 + 24 = 29 · 19 × 29 = 551

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SUM

Five numbers, four operations, three targets. Combine the numbers with + − × ÷ to hit each target exactly. The same puzzle for everyone, in every language.