20

'A festa — the feast

No full dossier yet for 20. The Smorfia line below is its place in the Neapolitan book of dreams; more dossiers are written over time.

Smorfia napoletana'A festathe feast

Cultural interest — does not change your odds.

The reality check

What the machines actually did with 20, across every lottery this site holds a long record for.

Powerball102of 103 expected−0.05σ
UK Lotto126of 119 expected+0.65σ
EuroMillions116of 104 expected+1.21σ
SuperEnalotto162of 161 expected+0.09σ
Set for Life381of 378 expected+0.18σ

Across 5 lotteries that hold a 20, its average deviation from expectation is +0.41σ. Statistically ordinary, everywhere.

The one thing a belief about a number can measurably do is change how many people play it — and a jackpot shared more ways is worth less to each winner. That is the only real consequence, and it is arithmetic rather than folklore.