Did Prahlada Maharaj Chant the Maha-Mantra?

[Shivam 0]

It's said that he used Om Namo Bhagavate Vasudevaya to worship Maha-Visnu. Did he use the Maha-mantra we use today as well?

[vrajavasi 0]

Radhe Krishna,

 

From Shrimad Bhagawatham, I can not recollect whether Prahlada chanted "Dwadasakshari".

 

But I am sure I have not come across the fact that he has chanted

 

"Hare Rama Hare Rama Rama Rama Hare Hare

Hare Krishna Hare Krishna Krishna Krishna Hare Hare"

 

Radhe Krishna