number-sets/code-files/calculate-primes.sh

47 lines
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#!/bin/bash
maxint=9223372036854775807
root=3037000499
destination=255
rm -f prime.list prime.hex.list prime.dec.list
SECONDS=0
echo "01 1" >> prime.list
echo "02 2" >> prime.list
echo "03 3" >> prime.list
echo "05 5" >> prime.list
echo "07 7" >> prime.list
for ((n=3; n<$((destination+1)); n++)); do
#echo -n "Number $n > "
sqrt=$(echo "scale=0; sqrt($n)" | bc)
if [[ $((sqrt*sqrt)) != $n ]]; then
# echo "$n > $p > $sqrt"
# sleep 1s
for ((p=2; p<$sqrt; p++)); do
#echo "$n > $p > $sqrt"
#sleep 1s
if [[ $((n%p)) == 0 ]] && [[ $p != $((sqrt-1)) ]]; then
#echo "NOT PRIME"
p=$sqrt
elif [[ $((n%p)) != 0 ]] && [[ $p == $((sqrt-1)) ]]; then
clear
hex=$(printf "%02X" "$n")
echo "Number $n of $destination is PRIME [$((n*100/destination)) %]"
#echo "$n" >> prime.dec.list
#echo "$hex" >> prime.hex.list
echo "$hex $n" >> prime.list
rate=$((SECONDS*1000000/n))
estsec=$((rate*destination/1000000))
remsec=$((estsec-SECONDS))
found=$(cat prime.list | wc -l)
echo "Running Time: $((SECONDS/86400)) days, $(((SECONDS%86400)/3600)) hours, $(((SECONDS%3600)/60)) minutes and $(((SECONDS%60))) seconds..."
echo "Remaining Time: $((remsec/86400)) days, $(((remsec%86400)/3600)) hours, $(((remsec%3600)/60)) minutes and $(((remsec%60))) seconds..."
echo "Found $found PRIME numbers at an average rate of $((found/(SECONDS+1))) per second..."
fi
done
fi
done