Dihedral Prime is also referred to as dihedral calculator prime. It is a prime number that reads like itself and another prime number when read in a seven segment display, regardless of orientation or surface. The first few decimal dihedral primes are 2, 5, 11, 101, 181, 1181, 1811, 18181, 108881, 110881, 118081, 120121, 121021, 121151, 150151, 151051, 151121, 180181, 180811, 181081. Here Dihedral primes chart displays all dihedral prime numbers.
| 2 | 5 | 11 | 101 | 181 |
| 1181 | 1811 | 18181 | 108881 | 110881 |
| 118081 | 120121 | 121021 | 121151 | 150151 |
| 151051 | 151121 | 180181 | 180811 | 181081 |
| 188011 | 188801 | 1008001 | 1022201 | 1028011 |
| 1055501 | 1058011 | 1082801 | 1085801 | 1088081 |
| 1108201 | 1108501 | 1110881 | 1120121 | 1120211 |
| 1150151 | 1150511 | 1180811 | 1181881 | 1208021 |
| 1210151 | 1210211 | 1221221 | 1250521 | 1280821 |
| 1281281 | 1508051 | 1510121 | 1510511 | 1520251 |
| 1551551 | 1580851 | 1581581 | 1802081 | 1805081 |
| 1808801 | 1821821 | 1851851 | 1880111 | 1880881 |
| 1881811 | 1881881 | 10001081 | 10001801 | 10011101 |
| 10080011 | 10101181 | 10111001 | 10111081 | 10128011 |
| 10158011 | 10180801 | 10188811 | 10808101 | 10810001 |
| 10888081 | 10888181 | 11008001 | 11008111 | 11010281 |
| 11010581 | 11018881 | 11082101 | 11085101 | 11088881 |
| 11180011 | 11810081 | 11888101 | 12158521 | 12252551 |
| 12552251 | 12585121 | 12815581 | 15128251 | 15225521 |
| 15282151 | 15525221 | 15812281 | 18001811 | 18010001 |
| 18011101 | 18088801 | 18110101 | 18111881 | 18188801 |
| 18201011 | 18221851 | 18288581 | 18501011 | 18551821 |
| 18588281 | 18811181 | 18881011 | 18888011 | 100080181 |
| 100100111 | 100111001 | 100252511 | 100525211 | 100808101 |
| 100810811 | 100818881 | 100888001 | 101018081 | 101088881 |
| 101108881 | 101180081 | 101218021 | 101218801 | 101518051 |
| 101518801 | 101808001 | 108000811 | 108081881 | 108088181 |
| 108101801 | 108108881 | 108110081 | 108121801 | 108151801 |
| 108180811 | 108181111 | 108225151 | 108282011 | 108552121 |
| 108585011 | 108810011 | 108810181 | 108812101 | 108815101 |
| 108820021 | 108850051 | 108881111 | 110018801 | 110100811 |
| 110111011 | 110222251 | 110225221 | 110251181 | 110282801 |
| 110521181 | 110552551 | 110555521 | 110585801 | 110822111 |
| 110855111 | 110880811 | 110881811 | 111001001 | 111010111 |
| 111020111 | 111050111 | 111118811 | 111181111 | 111181801 |
| 111188801 | 111228011 | 111558011 | 111800881 | 111828121 |
| 111858151 | 112050121 | 112111211 | 112251121 | 112525001 |
| 112828151 | 115020151 | 115111511 | 115252001 | 115521151 |
| 115858121 | 118000801 | 118001011 | 118008881 | 118018001 |
| 118081801 | 118088011 | 118188011 | 118252811 | 118525811 |
| 118800181 | 118811111 | 118818811 | 118880821 | 118880851 |
| 120028801 | 120080251 | 120155821 | 120801521 | 120808021 |
| 120808081 | 120812101 | 121050211 | 121058081 | 121080121 |
| 121080221 | 121152211 | 121255801 | 121281821 | 121282121 |
| 121555121 | 121828111 | 121858511 | 122008181 | 122080121 |
| 122105821 | 122505881 | 122522011 | 122858221 | 125025281 |
| 125051821 | 125058181 | 125080051 | 125108021 | 125225851 |
| 125555011 | 128088811 | 128150521 | 128182121 | 128255251 |
| 128285851 | 128501221 | 128525821 | 128551021 | 128802181 |
| 128810081 | 150058801 | 150080521 | 150122851 | 150801251 |
| 150808051 | 150808081 | 150815101 | 151020511 | 151028081 |
| 151080151 | 151080551 | 151125511 | 151222151 | 151522801 |
| 151581851 | 151585151 | 151828211 | 151858111 | 152021851 |
| 152028181 | 152052581 | 152080021 | 152108051 | 152222011 |
| 152552821 | 155008181 | 155080151 | 155102851 | 155202881 |
| 155255011 | 155828551 | 158088811 | 158120251 | 158185151 |
| 158201551 | 158221051 | 158252851 | 158522521 | 158582821 |
| 158805181 | 158810081 | 180011801 | 180018821 | 180018851 |
| 180020881 | 180050881 | 180081101 | 180101081 | 180215081 |
| 180512081 | 180808021 | 180808051 | 180810101 | 180811181 |
| 180820151 | 180850121 | 181008811 | 181010881 | 181018801 |
| 181080001 | 181111181 | 181118081 | 181125011 | 181152011 |
| 181208821 | 181508851 | 181800221 | 181800551 | 181811881 |
| 181820251 | 181850521 | 181880801 | 181888181 | 182108581 |
| 182520521 | 182801581 | 182888581 | 185108281 | 185250251 |
| 185801281 | 185888281 | 188008111 | 188010181 | 188010881 |
| 188020081 | 188050081 | 188118181 | 188180801 | 188202551 |
| 188505221 | 188800811 | 188801101 | 188801801 | 188818001 |
| 188880101 | 188888881 |
Dihedral Calculator Prime Numbers Table / Dihedral Primes Chart has a prime number with digits that read the same number in both forward and backward direction. The digits can be found by concatenating the other two prime numbers.
