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- Primeval_number abstract "In mathematics, a primeval number is a natural number n for which the number of prime numbers which can be obtained by permuting some or all of its digits (in base 10) is larger than the number of primes obtainable in the same way for any smaller natural number. Primeval numbers were first described by Mike Keith.The first few primeval numbers are1, 2, 13, 37, 107, 113, 137, 1013, 1037, 1079, 1237, 1367, ... (sequence A072857 in OEIS)The number of primes that can be obtained from the primeval numbers is0, 1, 3, 4, 5, 7, 11, 14, 19, 21, 26, 29, ... (sequence A076497 in OEIS)The largest number of primes that can be obtained from a primeval number with n digits is1, 4, 11, 31, 106, ... (sequence A076730 in OEIS)The smallest n-digit prime to achieve this number of primes is2, 37, 137, 1379, 13679, ... (sequence A134596 in OEIS)Primeval numbers can be composite. The first is 1037 = 17×61. A Primeval prime is a primeval number which is also a prime number:2, 13, 37, 107, 113, 137, 1013, 1237, 1367, 10079, ... (sequence A119535 in OEIS)The following table shows the first six primeval numbers with the obtainable primes and the number of them.".
- Primeval_number wikiPageExternalLink page.php?sort=Primeval.
- Primeval_number wikiPageExternalLink primeval.htm.
- Primeval_number wikiPageID "321936".
- Primeval_number wikiPageRevisionID "557578512".
- Primeval_number hasPhotoCollection Primeval_number.
- Primeval_number subject Category:Base-dependent_integer_sequences.
- Primeval_number subject Category:Prime_numbers.
- Primeval_number type Abstraction100002137.
- Primeval_number type Arrangement107938773.
- Primeval_number type Base-dependentIntegerSequences.
- Primeval_number type DefiniteQuantity113576101.
- Primeval_number type Group100031264.
- Primeval_number type Measure100033615.
- Primeval_number type Number113582013.
- Primeval_number type Ordering108456993.
- Primeval_number type Prime113594005.
- Primeval_number type PrimeNumber113594302.
- Primeval_number type PrimeNumbers.
- Primeval_number type Sequence108459252.
- Primeval_number type Series108457976.
- Primeval_number comment "In mathematics, a primeval number is a natural number n for which the number of prime numbers which can be obtained by permuting some or all of its digits (in base 10) is larger than the number of primes obtainable in the same way for any smaller natural number. Primeval numbers were first described by Mike Keith.The first few primeval numbers are1, 2, 13, 37, 107, 113, 137, 1013, 1037, 1079, 1237, 1367, ...".
- Primeval_number label "Primeval number".
- Primeval_number label "原始數".
- Primeval_number sameAs m.01vmhd.
- Primeval_number sameAs Q2743467.
- Primeval_number sameAs Q2743467.
- Primeval_number sameAs Primeval_number.
- Primeval_number wasDerivedFrom Primeval_number?oldid=557578512.
- Primeval_number isPrimaryTopicOf Primeval_number.