Pentagonal numbers are truncated triangular numbers
Explores the relationship between pentagonal and triangular numbers through visual and algebraic proofs.
Explores the relationship between pentagonal and triangular numbers through visual and algebraic proofs.
A technical guide implementing Wagon's algorithm in Python to solve x² + y² = p for large primes, using quadratic residues and a modified Euclidean algorithm.
Explains how to compute a square root of -1 modulo a prime p, using number theory and Python code examples.
Explains an algorithm for finding a non-square modulo a prime, with Python code and examples from cryptography.
Explores Fermat's theorem on expressing primes as sums of two squares, comparing Gauss's formula with a more efficient computational algorithm.
Explores prime gaps, their mathematical merit, and their use as proof-of-work in the Gapcoin cryptocurrency.
Explores prime clusters, their mathematical definition, and their use as proof-of-work in the Riecoin cryptocurrency.
Explores a method for testing Cunningham prime chains efficiently, with applications in cryptocurrency proof-of-work systems.
Explores bi-twin prime chains, a mathematical pattern where sequences of twin primes follow a doubling rule, with examples and Python verification code.
Explores prime number chains like Cunningham chains and their application in the Primecoin cryptocurrency's proof-of-work system.
A new record for the largest known 'compositorial prime' has been set, a prime number with over 3.7 million digits.
Celebrates Pi Day with two math tricks: a party trick using the 'Rule of 37' and a computer implementation of Ramanujan's formula for calculating Pi.