Maximum XP multiplier

Antrix

Hi all! Sorry if wrong category. What is maximum XP multiplier? What i have at this moment:
1. Gear + 7% (what i've found)
2. Winter Festival
3. Ambrosia 100% (can't find 150%, i'll try to ask someone later)
4. ESO Plus

Anything else?

Nightfall12

There are crown xp scrolls. And the Mythic Ambrosia too

raj72616a

there's getting married too

SaintSubwayy

OK you can get:

+10% EXP for being in a group of 2 ppl
+10% EXP from ESO+
+10% EXP from getting Married (Requires you to be in same grp with the 2 married chars, freind and you)
+150% EXP From Mythical Aetherial Ambrosia
+100% EXP from Events
+70% EXP from wearing 7 pieces Training gear (purple quality)
+8% EXP from using a Training 2h Weapon, or 2 onehanded weapons (Purple quality)

This can give you a total of: 358% EXP

Keep in mind, when using Golden Quality Training Gear you'll get even higher (but its rly expensive)
Your EXP Gain will be increased even further if you've enlightenment (will be rewarded after 24hrs)

WatchYourSixx

Group of 2 is 10%, ESO+ 10%, pledge of Mara 10% with your group buddy, 100% from holiday events, 150% from mythic ambrosia, and 77% from 7 training, or 88% from a shield too 8 training total. (Gold training)

So your maximum xp gain possible is 468%. So if you kill something that gives you 1k xp normally, you would get 4.68k xp. If enlightened it would be 18.72k.

If you are questing and you get 5k xp from the quest, you would earn 23.4k xp.

So to answer your question, 4.68 is the highest multiplier.