Problems & Puzzles:
1.- Goldbach's Conjecture
2.- Chen's Conjecture
3.- Twin Prime's Conjecture
4.- Fermat primes are finite
5.- Are there infinitely many primes of the
6.- Quantity of primes in a given
range: Opperman, Brocard & Schinzel conjectures?
7.- The Cramer's Conjecture
8.- Andricas Conjecture
9.- Shank's Conjecture
10.- Champions and Primorial Numbers
11.- Is there any odd Perfect Number ?
12.- Selfridge challenge
13.- Sierpinski numbers
Haga Observation about Palprimes
15.- The New Mersenne
The Ludovicus conjecture about Euler trinomials
Minimal primorial partitions (a conjecture by John Harvester)
A bound to the
largest prime factor of certain Carmichael numbers
20. The first N natural numbers
listed in an order such that the sum of each two
adjacent of them is a prime number, and the Rivera's Algorithm
Conjectures about the representation of every natural number as an algebraic
sum of distinct consecutive prime numbers.
stronger version of the Goldbach Conjecture
Shyam's conjecture about the Rare Numbers
Calendar-like square Conjecture
Charles Ashbacher Conjecture
Buss's B(n) function
31. The Fermat-Catalan &
32. The ABC Conjecture
The Goldbach Temptation
The Firoozbakht functions
The Sinisalo-Ludovicus Conjecture
The Tutescu's Conjecture
Adrian Stoica’s Conjecture
Three consecutive primes
A property of prime twins, only?
Even numbers as sum of 4 twin primes.
P=2P1 + 3P2
n = pq + rs
n = pq - rs
51 : Two
approximate relationships about prime numbers
52 : SMR
Conjecture about consecutive primes
function & consecutive primes
= m^2 + p + d
more SMR conjecture.
Generalization of Legendre's Conjecture
61. THE MEAN
MAXIMUM GAP BETWEEN PRIMES
of Bertrand's Postulate
primes sum to a perfect power.
OF PRIME TWINS
between consecutive twin pairs
67. primes & e
68. Based on an
69. A Conjecture
& proposed Axiom
70. n & n+1 primitive
primes and π.
73. Counting primes
by the last significant digit.
74. What is
true assuming valid this...
formula for a special case of the Carmichael function.
related to sequence (P[n])^(1/n)
77. Gaps between
primes of the form p=qn+r