A386247 Primes containing 000 as a substring.

10007, 10009, 40009, 70001, 70003, 70009, 90001, 90007, 100003, 100019, 100043, 100049, 100057, 100069, 130003, 140009, 150001, 160001, 160009, 170003, 180001, 180007, 200003, 200009, 200017, 200023, 200029, 200033, 200041, 200063, 200087, 220009, 230003, 240007

Offset: 1

Author

Alois P. Heinz, Jul 16 2025

Keywords

• nonn
• base
• easy

Comments

Differs from A164968 first at n=10: a(10) = 100019 < 200003 = A164968(10).

Links

• Alois P. Heinz, Table of n, a(n) for n = 1..20761

Crossrefs

Cf. A000040, A164968, A243527, A166580, A166581, A166582, A167281, A131645, A167282, A167290, A167292, A386240.

Programs

Mathematica

Select[Prime[Range[1230, 25000]], StringContainsQ[IntegerString[#], "000"] &] (* Paolo Xausa, Jul 19 2025 *)