/usr/share/lisaac/lib/standard/number/ is in lisaac-common 1:0.39~rc1-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/lisaac/lib/standard/number/fixed_real/
/usr/share/lisaac/lib/standard/number/fixed_real/real_16_16.li
/usr/share/lisaac/lib/standard/number/fixed_real/real_24_8.li
/usr/share/lisaac/lib/standard/number/fixed_real/real_26_6.li
/usr/share/lisaac/lib/standard/number/fixed_real/ureal_16_16.li
/usr/share/lisaac/lib/standard/number/fixed_real/ureal_24_8.li
/usr/share/lisaac/lib/standard/number/fixed_real/ureal_26_6.li
/usr/share/lisaac/lib/standard/number/integer/
/usr/share/lisaac/lib/standard/number/integer/integer.li
/usr/share/lisaac/lib/standard/number/integer/integer_16.li
/usr/share/lisaac/lib/standard/number/integer/integer_32.li
/usr/share/lisaac/lib/standard/number/integer/integer_64.li
/usr/share/lisaac/lib/standard/number/integer/integer_8.li
/usr/share/lisaac/lib/standard/number/integer/uinteger.li
/usr/share/lisaac/lib/standard/number/integer/uinteger_16.li
/usr/share/lisaac/lib/standard/number/integer/uinteger_32.li
/usr/share/lisaac/lib/standard/number/integer/uinteger_64.li
/usr/share/lisaac/lib/standard/number/integer/uinteger_8.li
/usr/share/lisaac/lib/standard/number/integer/uinteger_big.li
/usr/share/lisaac/lib/standard/number/integer/uinteger_cpu.li
/usr/share/lisaac/lib/standard/number/real/
/usr/share/lisaac/lib/standard/number/real/real.li
/usr/share/lisaac/lib/standard/number/real/real_32.li
/usr/share/lisaac/lib/standard/number/real/real_64.li
/usr/share/lisaac/lib/standard/number/real/real_80.li