This is the command matho-primes that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
matho-primes - generate consecutive prime numbers
SYNOPSIS
matho-primes [start [stop] or "all"] ["twin"] ["pal" [base]]
matho-primes [-htuv] [-c count] [-m number] [-p base] [start [stop]]
DESCRIPTION
This command-line utility is optionally part of the mathomatic(1) package. It quickly
computes any number of consecutive prime numbers using a windowing, memory efficient sieve
of Eratosthenes algorithm, dumping them to standard output. They are displayed one prime
per line in ascending order, unless the "twin" option is specified, which displays only
twin primes, two primes per line.
Generates up to 18 decimal digit primes, or whatever is the number of digits of precision
for a floating point long double in the C compiler used to compile this utility. Note
that this utility might be compiled to use only double precision floating point, if long
double precision is not fully supported by the C compiler or hardware, allowing at most 15
decimal digit primes in that case.
Ways to verify that this utility is working are to pipe the output into the Unix "factor"
utility, or compare the output with the BSD Games "primes" utility, using the supplied
shell script: examples/testprimes.
All numbers displayed by this utility are decimal (base 10) prime numbers. A prime number
is an integer that cannot be factored.
A range may be specified on the command line, otherwise the starting number and the number
of primes to output is prompted for. The range is start to stop inclusive, and stop must
be greater than or equal to start.
If the -c option is specified, the number of lines of primes displayed is limited to the
decimal count that follows this option.
If the -t or "twin" option is specified on the command line, only twin primes will be
displayed. Twin primes are two primes that differ in value by 2. Each twin pair is
displayed together on the same line separated by a space character.
If the -p or "pal" option is specified on the command line, only palindromic primes are
displayed. Palindromes are symmetrical, they read exactly the same forward and backward.
The palindromic number base may be specified, the default is base 10. The base can be any
integer greater than 1. Primes are always displayed in decimal (base 10).
The version number and short help on the allowed command-line parameters and usage
information are displayed when given the -h option.
With the -u option, all output (standard output and standard error output) is set to be
unbuffered, making all output happen immediately, instead of when the output buffer is
full or when the program terminates or waits for input.
The -m option changes the memory size of the prime number sieve window. It is followed by
a decimal, floating point number which is a multiplier of the default window size (2
megabytes). It is possible that changing the memory size may speed up the total run time
a bit; otherwise there is no reason to use this option, and its use is not recommended.
The -v option simply displays the program name and version number, and then exits
successfully.
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