HOW MANY DEITIES ARE MENTIONED IN GAYATRI MANTRA

There are 26 gods in Gayatri mantra

tat - ganesh
sa - Narasimha
vi - vishnu
tu - siva
va - krishna
re - radha
Ni - lakshmi
yam - agni
bha - indra
Rgo - saraswati
dE - durga
va - hanuman
sya - prithvi
dhee - surya
ma - Sriram
hi - seetha
dhi - chandra
yO - yama
ya - brahma
na - varuna
chO - hayagreeva
da - hamsa
yaat - tulasi

One should chant 1008 times, or 108 time of 28 times or atleast 10 times

Gayatri has fire in face, Brahma the creator in forehead, Vishnu the protector in heart and Siva the destroyer on top of head.

So its a combination of all Gods.

Gayathri Manthra should be chanted 3 times a day.

Goddess Gayathri confers the boon of Intelligence as Gayathri, Protection as Savithri and Learning as Saraswathi. Gayathri is therefore called Sarvadevata Swarupini.