Hamilton is gunning for his fifth career title and is expected to be engaged in a fierce battle with Sebastian Vettel.
However, Prost thinks the Mercedes driver’s struggles so far this campaign go much deeper than just his German rival.
The Renault advisor believes that every driver from Mercedes, Ferrari and Red Bull has a good shot at winning the top honour.
Valtteri Bottas, Kimi Raikkonen, Daniel Ricciardo and Max Verstappen have all showed they have got the quality and the car to challenge at the front of the grid.
And Prost says that is why hamilton has taken four races to record his opening win of the season.
“The six drivers for Mercedes, Ferrari and Red Bull can be competitive in all circumstances,” Prost said.
“It’s more difficult for Hamilton, who has usually fought for championships against single drivers only.
“Now he will not be able to manage races in the same way against four or five competitors, but for us it will be exciting.”
Prost also predicted his former side to win the world championship.
But he could not decide whether Raikkonen or Vettel will be the one lifting the trophy come November.
“I think this year Ferrari can win,” Prost added.
“I think the engine has progressed more than the chassis.
“I made a mistake last year when I said that every time there is a change of regulation, Ferrari was rarely there.
“In the winter Mercedes and Red Bull seemed to be a little better, but it turned out that they (Ferrari) are there in qualifying and tyre management.
“Also Raikkonen is there at Vettel’s level which will be a great help.”
Source : EXPRESS