News <2025>

1. July 2025 2025 年 7 月

Jason Parker-Burlingham proved that (34·10²²⁹²⁵-61)/9 is prime. Jason Parker-Burlinghamさんが(34·10²²⁹²⁵-61)/9が素数であることを証明しました。

Ryan Propper found 4 k*10^n-1 form prime numbers. Ryan Propperさんが4個のk*10^n-1の形の素数を見つけました。

k*10^n-1 form (probable) prime numbers
rank	digits	flabel_n	wlabel[:v]:w	wclass	(probable) prime number	status	t5k	comment
2	2,084,564	79999_2084563	79w:2084563	nr m1	8×10^2,084,563 − 1	pr	id=140836	Ryan Propper / Srsieve, PRST / Jun 1, 2025
3	2,045,967	79999_2045966	79w:2045966	nr m1	8×10^2,045,966 − 1	pr	id=140833	Ryan Propper / Srsieve, PRST / May 31, 2025
4	1,990,325	79999_1990324	79w:1990324	nr m1	8×10^1,990,324 − 1	pr	id=140832	Ryan Propper / Srsieve, PRST / May 31, 2025
9	1,652,594	79999_1652593	79w:1652593	nr m1	8×10^1,652,593 − 1	pr	id=140830	Ryan Propper / Srsieve, PRST / May 31, 2025

Ryan Propper found 4 k*10^n-1 form prime numbers. Ryan Propperさんが4個のk*10^n-1の形の素数を見つけました。

k*10^n-1 form (probable) prime numbers
rank	digits	flabel_n	wlabel[:v]:w	wclass	(probable) prime number	status	t5k	comment
2	1,807,301	59999_1807300	59w:1807300	nr m1	6×10^1,807,300 − 1	pr	id=140778	Ryan Propper / Srsieve, PRST / May 23, 2025
7	1,585,830	89999_1585829	89w:1585829	nr m1	9×10^1,585,829 − 1	pr	id=140779	Ryan Propper / Srsieve, PRST / May 23, 2025
14	1,224,890	89999_1224889	89w:1224889	nr m1	9×10^1,224,889 − 1	pr	id=140772	Ryan Propper / Srsieve, PRST / May 23, 2025
16	1,148,276	89999_1148275	89w:1148275	nr m1	9×10^1,148,275 − 1	pr	id=140771	Ryan Propper / Srsieve, PRST / May 23, 2025

Predrag Kurtovic found 3 k*10^n-1 form (probable) prime numbers. Predrag Kurtovic さんが3個のk*10^n-1の形の(おそらく)素数を見つけました。

k*10^n-1 form (probable) prime numbers
rank	digits	wlabel[:v]:w	wclass	(probable) prime number	comment
132	153,113	46649w:153109	m1	4,665×10^153,109 − 1	Predrag Kurtovic / Jan 12, 2025
225	81,001	46649w:80997	m1	4,665×10^80,997 − 1	Predrag Kurtovic / Jan 12, 2025
295	61,877	46649w:61873	m1	4,665×10^61,873 − 1	Predrag Kurtovic / Jan 12, 2025