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Forum: NeRDs

2014-02-03, 17:10

Replies: 4

Why NeRDs_360360?

Views: 3,701

Posted By paulunderwood

These may be "swept away" from the top5000, but...

These may be "swept away" from the top5000, but they should stay on the near-repdigit table.

I have exponents 388080 and 471240 sieved. :smile:

Forum: NeRDs

2014-02-03, 17:08

Replies: 4

Why NeRDs_360360?

Views: 3,701

Posted By paulunderwood

42320 candidates were left in the range...

42320 candidates were left in the range 90000-360360.

Chuck Lasher is crunching 3/19 of this. Thomas, you are crunching 1/19. I crunched some. The rest was put up, ready for others to crunch -- 1...

Forum: NeRDs

2014-02-03, 04:49

Replies: 4

Why NeRDs_360360?

Views: 3,701

Posted By paulunderwood

Why NeRDs_360360?

Why did I choose 10^360360-10^k-1?

360360 = 2*2*2*3*3*5*7*11*13

For small primes p, 10^((p-1)*a)==1 (mod p), and so 10^360360-10^k-1 is not divisible by p. Consequently, after sieving, there is...

Showing results 1 to 3 of 3

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