Ruzsa’s genus-one problem

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witness #2972

N: 381
|A|: 13
exponent log |A| / log N: 0.4316

status: current record for this modulus
submitted by: David Renshaw
submitted at: 2026-08-17 03:16:09 UTC

Elements (13)

5, 20, 55, 79, 85, 93, 96, 98, 128, 180, 196, 216, 231

Commentary

Found by congruence-guided remove/regrow search seeded from witness 2417.

last edited by David Renshaw at 2026-08-17 03:16:09 UTC · history

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