How much prayer xp from guiled alter and 23 d bones?

The prayer caculator does include Gilded Altar:

 

 

 

http://tip.it/runescape/?page=prayer_calc.htm

 

 

 

 

 

 

 

Dragon Bones give 252 exp when used on the altar, so 23 would yield 5796 exp.

With the best burners lit, 5,796 prayer XP.