Ruzsa’s genus-one problem

witness #1561

N
14,625
|A|
63
exponent log |A| / log N
0.4320
status
current record for this modulus
submitted by
Yongxi (Aaron) Lin
submitted at
2026-08-07 22:26:22 UTC

Elements (63)

1375, 1381, 1396, 1406, 1415, 1423, 1425, 1490, 1496, 2125, 2131, 2146, 2156, 2165, 2173, 2175, 2240, 2246, 2250, 2256, 2271, 2281, 2290, 2298, 2300, 2365, 2371, 6875, 6881, 6896, 6906, 6915, 6923, 6925, 6990, 6996, 7375, 7381, 7396, 7406, 7415, 7423, 7425, 7490, 7496, 7750, 7756, 7771, 7781, 7790, 7798, 7800, 7865, 7871, 8000, 8006, 8021, 8031, 8040, 8048, 8050, 8115, 8121

Commentary

Mixed-radix sum-set A=A_125+125 A_117. The 9-point N=125 record times the 7-point N=117 record gives 63 points in Z/(125*117)Z. Reduction modulo 125 forces equality of low digits; after cancellation/division by 125, the N=117 witness forces equality of high digits.

last edited by Yongxi (Aaron) Lin at 2026-08-07 22:26:22 UTC · history

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