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A factorization and prime number program

Factorizer 11.29


A program to find prime numbers and pairs of primes, to decompose numbers into their prime constituents, to find all factors of any positive integer up to 2,147,483,645, and to plot Erdos-Kac and Palmen Color histograms.

free download trial (1.46 Mb)


For exploring the Prime Number Spiral.

Prime Number Spiral 8.69


The Prime Number Spiral (a.k.a. the Ulam Spiral) is formed by marking the prime numbers in a spiral arrangement of the natural numbers. This is software is for exploring the Prime Number Spiral.

free download trial (1.56 Mb)


research prime numbers

XSPRIME 2008


research prime numbers starting with numbers very high, two version, cpu and hard disk

free download (1.05 Mb)



Hpmbcalc: multiple-precision hex calculator

Hpmbcalc Hex Calculator 4.22


A programmable multiple-precision hex calculator with many utilities. With it, you can perform a lot of big number math and encryption operations, such as: square root, modular inverse; hash make; primality test; hex, dec, oct, bin conversions.

free download trial (1.46 Mb)


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