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C is a general-purpose computer programming language used for operating systems, games, and other high performance work and is clearly distinct from C++. It was developed in 1972 by Dennis Ritchie for use with the Unix operating system.
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Slow prime finder
This program runs in about 1.65 seconds on a 1.65GHz dual core processor.
I compile it with:
gcc -Wall -o ./program ./program.c -lm
Are there any optimizations I can use to speed this up, or is it …