A268858 -id:A268858 - cp's OEIS frontend

A268859 Prime numbers ending in 21.

421, 521, 821, 1021, 1321, 1621, 1721, 2221, 2521, 2621, 3121, 3221, 3821, 4021, 4421, 4621, 4721, 5021, 5521, 5821, 6121, 6221, 6421, 6521, 7121, 7321, 7621, 8221, 8521, 8821, 9221, 9421, 9521, 9721, 10321, 11321, 11621, 11821, 12421, 12721, 12821, 13121

Offset: 1

Soumadeep Ghosh, Feb 14 2016

Cf. A268858, A268860.

[n: n in PrimesUpTo(15000) | n mod 100 eq 21]; // Vincenzo Librandi, Feb 15 2016

A268859:=n->`if`(isprime(n) and n mod 100 = 21, n, NULL): seq(A268859(n), n=1..5*10^4); # Wesley Ivan Hurt, Apr 02 2016

Select[Table[21 + 100 i, {i, 0, 10^3}], ProvablePrimeQ[#] &]

lista(nn) = {for(n=1, nn, if (isprime(p=100*n+21), print1(p, ", ")););} \\ Michel Marcus, Feb 20 2016

from sympy import isprime
for n in range(421,15000,100):
    if(isprime(n)):print(n)
# Soumil Mandal, Apr 03 2016

A268860 Prime numbers ending in 27.

Original entry on oeis.org

127, 227, 727, 827, 1327, 1427, 1627, 2027, 2927, 3527, 3727, 4027, 4127, 4327, 5227, 5527, 5827, 5927, 6427, 6827, 7027, 7127, 7727, 7927, 8527, 8627, 9127, 9227, 10427, 10627, 11027, 11527, 11827, 11927, 12227, 12527, 13127, 13327, 13627, 14327, 14627

Offset: 1

Soumadeep Ghosh, Feb 14 2016

Cf. A268858, A268859.

[n: n in PrimesUpTo(15000) | n mod 100 eq 27]; // Vincenzo Librandi, Feb 15 2016

A268860:=n->`if`(isprime(n) and n mod 100 = 27, n, NULL): seq(A268860(n), n=1..5*10^4); # Wesley Ivan Hurt, Apr 02 2016

Select[Table[27 + 100 i, {i, 0, 10^3}], ProvablePrimeQ[#] &]

lista(nn) = {forprime(p=2, nn, if ((p-27) % 100 == 0, print1(p, ", ")););} \\ Michel Marcus, Feb 20 2016

from sympy import isprime
for n in range(127,10000,100):
    if(isprime(n)):print(n)
# Soumil Mandal, Apr 02 2016

cp's OEIS Frontend

A268859 Prime numbers ending in 21.

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