Rafa Benitez and Garry Monk (right) have Newcastle and Leeds firmly in the promotion race
Newcastle suffered a late 2-2 draw with QPR on Wednesday, while Leeds nicked a dramatic late win at Blackburn on the same night.
It means the gap between fourth-place Leeds and Sheffield Wednesday in seventh is eight points.
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The fact that Benitez was looking at him tells you that he doesn’t think Newcastle are home and dry
But Prutton believes Leeds should be looking up the table, rather than down it.
"The top two aren’t untouchable from Leeds’ point of view," Prutton told the Yorkshire Post.
"The club’s victory at Blackburn was a significant result in a few ways."
Leeds endured FA Cup embarrassment last weekend when they lost 1-0 at non-league Sutton United.
But manager Garry Monk then made 10 changes to his side and got three crucial points at Ewood Park this week.
Leeds beat Blackburn 2-1 on Wednesday night
Meanwhile Rafa Benitez, Monk's counterpart at Newcastle, is said to be unhappy with a lack of signings made during the transfer window.
Express Sport understands Benitez could quit Newcastle even if they are promoted in the summer.
And Prutton believes the Toon could be dragged back down into the mix by teams chasing the automatic spots.
"As for Newcastle, who at the moment are the team for Leeds and others to shoot at, I’m not sure," Prutton added.
"It seemed strange for Rafa Benitez to be complaining about their transfer business in January.
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Benitez's (centre) Newcastle sit second in the Championship
"When you’ve done as many deals as he did last summer, and spent as much money as he did last summer, surely January is about numbers and getting bodies through the door, finding enough cover to compensate for fitness, form and all that.
"Did they really need Andros Townsend? I don’t think so.
"But the fact that Benitez was looking at him tells you that he doesn’t think Newcastle are home and dry.
"We’re talking about five points between them and Leeds now. It’s absolutely not unattainable."