- An
emirp (an
anadrome of prime) is a
prime number that
results in a
different prime when its
decimal digits are reversed. This
definition excludes the...
-
Adaam ahmaad following 970 and
preceding 972. 971 is a
prime number, an
emirp, a Chen
prime and an
Eisenstein prime. Some uses of 971: +971, the country...
- both
rearrangements of its
digits (17 and 71) are
prime numbers, 71 is an
emirp and more
generally a
permutable prime. 71 is a
centered heptagonal number...
- can only be
divided by one and itself. 113 is a
Sophie Germain prime, an
emirp, an
isolated prime, a Chen
prime and a
Proth prime as it is a
prime number...
- It is the
number of triangle-free
graphs on 7 vertices. It is the
ninth emirp,
because reversing its
digits gives another prime number (701) As "one hundred...
-
partitions of 41 into
prime parts,
largely composite number. 337,
prime number,
emirp,
permutable prime with 373 and 733, Chen prime, star
number 338 = 2 × 132...
- 312. 311 is the 64th prime; a twin
prime with 313; an
irregular prime; an
emirp, an
Eisenstein prime with no
imaginary part and real part of the form 3...
- 3, 4} that are
closed under union and
intersection 733 =
prime number,
emirp,
balanced prime,
permutable prime, sum of five
consecutive primes (137 +...
- has
class number greater than 1 (namely 3). A
cousin prime with 83. An
emirp in base 10,
because the
reverse of 79, 97, is also a prime. A Fortunate...
- super-prime, Chen
prime 1032 = sum of two
distinct powers of 2 (1024 + 8) 1033 =
emirp, twin
prime with 1031 1034 = sum of 12
positive 9th
powers 1035 = 45th triangular...
