This is the command factorplan9 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
factor, primes - factor a number, generate large primes
factor [ number ]
primes [ start [ finish ] ]
Factor prints number and its prime factors, each repeated the proper number of times. The
number must be positive and less than 2**54 (about 1.8e16)
If no number is given, factor reads a stream of numbers from the standard input and
factors them. It exits on any input not a positive integer. Maximum running time is
proportional to sqrt(n).
Primes prints the prime numbers ranging from start to finish, where start and finish are
positive numbers less than 2**56. If finish is missing, primes prints without end; if
start is missing, it reads the starting number from the standard input.
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