- In
number theory the Agoh–
Giuga conjecture on the
Bernoulli numbers Bk
postulates that p is a
prime number if and only if p B p − 1 ≡ − 1 ( mod p ) ....
- In
number theory, a
Giuga number is a
composite number n {\displaystyle n} such that for each of its
distinct prime factors p i {\displaystyle p_{i}}...
-
tribonacci number 66,049 = 2572,
palindromic in
hexadecimal (1020116) 66,198 =
Giuga number 66,666 =
repdigit 67,081 = 2592,
palindromic in base 6 (12343216)...
- sum of
distinct divisors of 888. 888 is
equal to the sum of the
first two
Giuga numbers: 30 + 858 = 888.
There are exactly: 888
trees with four unlabeled...
-
divisor related numbers Blum
Cyclic Erdős–Nicolas Erdős–Woods
Friendly Giuga Harmonic divisor Jordan–Pólya Lucas–Carmichael
Pronic Regular Rough Smooth...
- Chen prime,
Eisenstein prime with no
imaginary part 858 = 2 × 3 × 11 × 13,
Giuga number 859 =
prime number,
number of
planar partitions of 11,
prime index...
-
there is a
primitive root
modulo m.
Wilson prime Table of
congruences Agoh–
Giuga conjecture Because if a ≡ a − 1 ( mod p ) {\displaystyle a\equiv a^{-1}{\pmod...
-
divisor related numbers Blum
Cyclic Erdős–Nicolas Erdős–Woods
Friendly Giuga Harmonic divisor Jordan–Pólya Lucas–Carmichael
Pronic Regular Rough Smooth...
- 78, 102, 105, 110, 114, 130, ...
Products of 3
distinct primes. A007304
Giuga numbers 30, 858, 1722, 66198, 2214408306, ...
Composite numbers so that...
-
divisor related numbers Blum
Cyclic Erdős–Nicolas Erdős–Woods
Friendly Giuga Harmonic divisor Jordan–Pólya Lucas–Carmichael
Pronic Regular Rough Smooth...
