He Loves Me; He Loves Me Not
However, instead of picking one at time like in the original game, in the following turns, the number of petals she picked would then run as a series of increasing primes (2, 3, 5, 7, 11...). If there weren't enough petals for the next larger prime, she would restart the new round by picking 1 petal and resume the same method. For example, if there were 10 petals, the number of picked petals would run: 1, 2, 3, 1, 2, 1 (ending with "not love").
Eventually, the Princess finished her game with 1 last petal left, which was also the start of her fourth round, ending with "not love".
If 7 was the largest prime number used in her game, then how many petals did her flower have?
Hint: The Princess suggested you should use logic as well.