- left-and-right-
truncatable prime,
since 1825711, 82571, 257, and 5 are all prime. In base 10,
there are
exactly 4260 left-
truncatable primes, 83 right-
truncatable primes...
-
mathematics and
computer science,
truncation is
limiting the
number of
digits right of the
decimal point.
Truncation of
positive real
numbers can be done...
- − 1. a
highly cototient number. the
number of
primes that are right-
truncatable. a super-prime,
because 23 is prime. The
eighth letter of the alphabet...
-
property (in decimal) is 27.
There are 15
truncatable primes that are both right-
truncatable and left-
truncatable: 2, 3, 5, 7, 23, 37, 53, 73, 313, 317,...
- {\displaystyle {\text{mod }}6} . 73 is one of the
fifteen left-
truncatable and right-
truncatable primes in decimal,
meaning it
remains prime when the last...
- 224. 223 is: a
prime number, a
lucky prime, a left-
truncatable prime, and a left-and-right-
truncatable prime.
Among the 720
permutations of the numbers...
- J. A. (ed.). "Sequence A020994 (Primes that are both left-
truncatable and right-
truncatable)". The On-Line
Encyclopedia of
Integer Sequences. OEIS Foundation...
- J. A. (ed.). "Sequence A020994 (Primes that are both left-
truncatable and right-
truncatable.)". The On-Line
Encyclopedia of
Integer Sequences. OEIS Foundation...
-
right cone
truncated perpendicularly to its axis; otherwise, it is an
oblique frustum. In a
truncated cone or
truncated pyramid, the
truncation plane is...
- but 79 is not one more than a
multiple of 23. A
regular prime. A right-
truncatable prime,
because when the last
digit (9) is removed, the
remaining number...
