Originally Posted by snommism
You'll need a team of 4 to do them at the level they are appropriate, you may be able to get away with 3 and 1 companion but that can be tricky.
Think it more depends on what level you are at. That first flashpoint, Lynk and I did it with companions (two DPS). Think dying was involved, but not beyond giving up. I even did a chunk of one flashpoint with my agent solo, until I found a chest that had the jacket I was looking for. That entailed a lot of stealth and sneak though (and dying). Still way easier with a group, but the lower level flashpoints are possible with 2 people and companions (if you don't mind some dying).