How many distinct lines you'd need for a better-than-even chance at the jackpot — and the cost of winning twice.
To be more likely than not to win the top prize of Powerball you would need 146,100,669 distinct lines — half of all 292,201,338 combinations.
At $2.00 a line that is $292,201,338 — and you would still lose the other half of the time.
Filling out one slip every 10 seconds, non-stop, would take about 46 years.
Winning the jackpot twice independently (odds ≈ 1 in 85,381,621,928,990,240) needs about 42,690,810,964,495,120 distinct lines for a >50% shot — not a useful purchase plan.