SEATTLE, Wash. -

Eight different Huskies scored their eight touchdowns. Keith Price accounted for four more himself – while playing only the first 23 minutes.

Deontae Cooper got mobbed in the end zone by the second-string offense – then by the starting O-line, starting defensive backs, quarterbacks coach Marques Tuiasosopo and more on the sideline. That was in celebration of the resilient and universally loved running back’s long-awaited first career touchdown run early in the fourth quarter of his comeback from three knee reconstructions in as many summers.

Hau’oli Kikaha had three sacks in the first half – his first three since the 2011 opener and two subsequent knee reconstructions.

It was a feel-good-all-over day for 17th-ranked Washington, which moved to 3-0 for the first time since 2001 with a 56-0 wipeout of lower-division Idaho State Saturday afternoon at sunny Husky Stadium.

Except for all the flags.

Eight were in the first quarter – five on pre-snap flags that drive Steve Sarkisian and every other football guy with a whistle nuts. Washington was penalized 16 times in all, two short of the UW record for a game set in 1998. This, after 12 flags marred last week’s 34-24 win over Illinois.

So when looking for what the Huskies got out of this tune up for next week’s Pac-12 opener versus Arizona and then games against Stanford and Oregon after it – a game in which the starters began departing in the second quarter -- the Dawgs don’t need to look any further than the need to clean up their penalties.

Everything else was glorious.

It could have been 70-0. But a holding penalty on Greg Ducre wiped out Ducre’s interception and return for a touchdown in the second quarter. Another holding penalty, on offense, took away Dwayne Washington’s long touchdown sprint down the UW sideline in the third quarter.

Washington scored earlier, on a 5-yard touchdown flip from Price. That made it 42-0 with 8:33 gone in the second quarter.

Price threw for touchdowns to Joshua Perkins (1 yard) and Austin Seferian-Jenkins (6 yards) in the 21-point second period. That was after the Huskies, playing with their highest national ranking since the start of the 2003 season, got an 3-yard TD run by Bishop Sankey, an 8-yard scoring run by Jesse Callier and 1-yard run by Price on an option keeper in the first quarter.

Sankey, the nation’s rushing leader at 184.5 yards per game coming in, left after just two drives. His four carries totaled 77 yards.

Nine different Huskies produced the team’s 370 yards rushing, part of 680 yards of offense.

This is the first time since at least 1947, when UW began tracking total-yardage statistics per game, that UW has gained at least 500 yards in three consecutive games.

Price was denied his third consecutive 300-yard passing day only because it would have been rude to keep him in the game for more than the 20 minutes he played.

Idaho State (2-1) of the Big Sky Conference had no time to throw, no holes to run into — and no size up front defensively to withstand the Huskies’ running game and pass protection. The total yards at halftime were indicative of the disparity in talent and size: Washington 397, Idaho State 20.

Idaho State was in negative total yardage until the final 6 minutes of the half.