A141883 -id:A141883 - cp's OEIS frontend

A244777 Prime numbers ending in the prime number 89.

89, 389, 1289, 1489, 1789, 1889, 2089, 2389, 2689, 2789, 3089, 3389, 3889, 3989, 4289, 4789, 4889, 5189, 5689, 6089, 6389, 6689, 7489, 7589, 7789, 8089, 8389, 8689, 9689, 10289, 10589, 10789, 10889, 11489, 11689, 11789, 12289, 12589, 12689, 12889

Offset: 1

Vincenzo Librandi, Jul 07 2014

Also primes of the form 100*n+89. Subsequence of A141883, A141938.

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Cf. similar sequences listed in A244763.

Cf. A141883, A141938.

[n: n in PrimesUpTo(15000) | n mod 100 eq 89];

Select[Prime[Range[5, 6000]], Take[IntegerDigits[#], -2]=={8, 9} &]
Select[100 Range[0,200]+89,PrimeQ] (* Harvey P. Dale, Nov 13 2022 *)

select(x->(x % 100)==89, primes(2000)) \\ Michel Marcus, Jul 07 2014

A141870 Primes congruent to 4 mod 19.

Original entry on oeis.org

23, 61, 137, 251, 479, 593, 631, 821, 859, 1049, 1087, 1163, 1201, 1277, 1429, 1543, 1619, 1657, 1733, 1847, 1999, 2113, 2341, 2417, 2531, 2683, 2797, 3253, 3329, 3557, 3671, 3709, 3823, 4013, 4051, 4127, 4241, 4507, 4583, 4621, 5039, 5077, 5153, 5381, 5419

Offset: 1

N. J. A. Sloane, Jul 11 2008

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Cf. A105854, A141881, A141882, A141883.

[p: p in PrimesUpTo(8000) | p mod 19 eq 4 ]; // Vincenzo Librandi, Aug 15 2012

Select[Range[4,5000,19],PrimeQ[#]&] (* Vladimir Joseph Stephan Orlovsky, Mar 31 2011*)

is(n)=isprime(n) && n%19==4 \\ Charles R Greathouse IV, Jul 03 2016

a(n) ~ 18n log n. - Charles R Greathouse IV, Jul 03 2016

A141871 Primes congruent to 6 mod 19.

Original entry on oeis.org

101, 139, 367, 443, 557, 709, 823, 937, 1013, 1051, 1279, 1583, 1621, 1697, 1811, 2039, 2153, 2267, 2381, 2609, 2647, 2837, 3217, 3331, 3407, 3559, 3673, 3863, 4091, 4129, 4243, 4357, 4547, 4813, 4889, 5003, 5231, 5573, 5801, 5839, 5953, 6029, 6067, 6143

Offset: 1

N. J. A. Sloane, Jul 11 2008

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Cf. A000040, A105854, A141881, A141882, A141883.

[p: p in PrimesUpTo(8000) | p mod 19 eq 6 ]; // Vincenzo Librandi, Aug 15 2012

Select[Range[6,5000,19],PrimeQ[#]&] (* Vladimir Joseph Stephan Orlovsky, Mar 31 2011*)
Select[Prime[Range[1000]],Mod[#,19]==6&] (* Harvey P. Dale, Sep 12 2020 *)

is(n)=isprime(n) && n%19==6 \\ Charles R Greathouse IV, Jul 03 2016

a(n) ~ 18n log n. - Charles R Greathouse IV, Jul 03 2016

A141872 Primes congruent to 7 mod 19.

Original entry on oeis.org

7, 83, 197, 311, 349, 463, 577, 653, 691, 881, 919, 1033, 1109, 1223, 1451, 1489, 1831, 1907, 2287, 2477, 2591, 2819, 2857, 2971, 3313, 3389, 3541, 3617, 3769, 4073, 4111, 4339, 4567, 4643, 4871, 4909, 5023, 5099, 5441, 5479, 5669, 5783, 5821, 5897, 6011

Offset: 1

N. J. A. Sloane, Jul 11 2008

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Cf. A000040, A105854, A141881, A141882, A141883.

[p: p in PrimesUpTo(8000) | p mod 19 eq 7 ]; // Vincenzo Librandi, Aug 15 2012

Select[Range[7,5000,19],PrimeQ[#]&] (* Vladimir Joseph Stephan Orlovsky, Mar 31 2011*)
Select[Prime[Range[800]],Mod[#,19]==7&] (* Harvey P. Dale, May 14 2025 *)

is(n)=isprime(n) && n%19==7 \\ Charles R Greathouse IV, Jul 03 2016

a(n) ~ 18n log n. - Charles R Greathouse IV, Jul 03 2016

A141884 Primes congruent to 11 mod 20.

Original entry on oeis.org

11, 31, 71, 131, 151, 191, 211, 251, 271, 311, 331, 431, 491, 571, 631, 691, 751, 811, 911, 971, 991, 1031, 1051, 1091, 1151, 1171, 1231, 1291, 1451, 1471, 1511, 1531, 1571, 1811, 1831, 1871, 1931, 1951, 2011, 2111, 2131, 2251, 2311, 2351, 2371, 2411, 2531, 2551

Offset: 1

N. J. A. Sloane, Jul 11 2008

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Cf. A000040, A105854, A141881, A141882, A141883.

[p: p in PrimesUpTo(3000) | p mod 20 eq 11 ]; // Vincenzo Librandi, Aug 16 2012

Select[Range[11,5000,20],PrimeQ[#]&] (* Vladimir Joseph Stephan Orlovsky, Mar 31 2011*)
Select[Prime[Range[400]],Mod[#,20]==11&] (* Harvey P. Dale, Aug 10 2021 *)

is(n)=isprime(n) && n%20==11 \\ Charles R Greathouse IV, Jul 03 2016

a(n) ~ 8n log n. - Charles R Greathouse IV, Jul 03 2016

cp's OEIS Frontend

A244777 Prime numbers ending in the prime number 89.

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A141870 Primes congruent to 4 mod 19.

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A141871 Primes congruent to 6 mod 19.

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A141872 Primes congruent to 7 mod 19.

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A141884 Primes congruent to 11 mod 20.

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