31

'O padrone 'e casa — the landlord

No full dossier yet for 31. The Smorfia line below is its place in the Neapolitan book of dreams; more dossiers are written over time.

Smorfia napoletana'O padrone 'e casathe landlord

Cultural interest — does not change your odds.

The reality check

What the machines actually did with 31, across every lottery this site holds a long record for.

Powerball100of 103 expected−0.26σ
UK Lotto123of 119 expected+0.34σ
EuroMillions100of 104 expected−0.44σ
SuperEnalotto162of 161 expected+0.09σ
Set for Life363of 378 expected−0.84σ

Across 5 lotteries that hold a 31, its average deviation from expectation is −0.22σ. 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.