From Lostpedia

Image from the Jigsaw Puzzles

16 is the fourth of the Numbers. Below is a list of appearances on the show, by episode chronology.

Occurrences in the show

Season 1

The Signal has been playing for sixteen years.

• # of years old the girl that Jack did his first solo operation on was, in the story about fear he told Kate ("Pilot, Part 1").
• # of hours after the crash that Jack, Kate, and Charlie found the pilot ("Pilot, Part 1").
• # displayed on Doubling cube whilst Locke explains backgammon to Walt. This was also shown to display a 4 in the same scene. ("Pilot, Part 2").
• # of years Sayid said the transmission from Danielle had been playing; since we know that is how long she has been in the island (and she was pregnant when she got there), we also know her daughter Alex is that many years old ("Pilot, Part 2").
• The age of the girl Jack performed his first solo surgery on was 16 years old. ("Pilot, Part 2")
• # of hours Jack told Chrissy at the airport desk he had to land in LAX, to bury his father ("White Rabbit").
• Sawyer needed $160,000 for his con of Jessica ("Confidence Man").
• The poster on the wall of the pool hall has the date June 16th.("Confidence Man")
• # of weeks since someone had won the Lottery before Hurley did ("Numbers").
• # of years since Sam and Lenny heard The Numbers ("Numbers").
• Hurley paid the Old Scooter Man $1600 for his scooter at the the airport ("Exodus, Part 1")
• Hurley left his mom $160 million ("Exodus, Part 1").

Season 2

The exercise bike was going sixteen miles per hour.

• # of miles/hr Desmond was peddling the exercise bike ("Man of Science, Man of Faith").
• Scribbled on the wall of graffiti when Jack goes down to the hatch for the first time, along with 8, 42 and 108. ("Man of Science, Man of Faith").
• # of weeks past since the last time someone won the lottery jackpot before Hurley won it("Everybody Hates Hugo").
• # on one of the gas pumps in Hurley's flashback ("Everybody Hates Hugo").
• # of hours Shannon said she would be working at her internship ("Abandoned").
• Anthony Cooper's safety deposit box in "Lockdown" was #1516 ("Lockdown").
• The September 22nd System Crash occurred at 4:16 ("?").
• Whilst Mr Eko is posing as a priest in Australia he is sent to investigate a miracle involving Charlotte Malkin and is told by Richard Malkin that he knows it is a fraud as he too is a fraud and even accepted $16,000 from a couple in LA to tell a girl (Claire) to give away her baby("?").
• # on one of the LAPD cars. ("Two for the Road")

Season 3

Hotel Room 1516.

• Jae Lee's hotel room number in The Glass Ballerina was 1516 ("The Glass Ballerina").
• Juliet enters 1623 into the sonic fence keypad ("Left Behind").
• Jack and Kate spend tense moments in the jungle, gathering firewood and breaking it into pieces, and during their angry silence and the following conversation, they break 8 branches into 16 usable pieces ("One of Us").
• The keypad in The Looking Glass has 16 keys, each a musical value, in a 4x4 pattern. ("Through the Looking Glass")

Season 4

• The docket number of Kate's trial was 42231615, the last four Numbers in reverse. ("Eggtown")
• The timer on the bomb Michael was given by the others to set off on the freighter had a countdown of 16 seconds.("Meet Kevin Johnson")
• # of times Jack pumps Desmond chest when trying to revive him after pulling Desmond's body from the water.("There's No Place Like Home, Parts 2 & 3")

Season 5

• The swinging pendulum in Ms. Hawking's lab passes the camera 4 times, then another 4 times (making 8). If we continue counting from there, we get a total of 16 passes (and consequently, 15 before it). ("The Lie")
• The model of the real "Jughead" bomb was EC16. ("Jughead")
• At the beginning of the episode, the time on the microwave was 3:16. ("Some Like It Hoth")
• Naomi offered Miles 1.6 million dollars after his "audition". ("Some Like It Hoth")

The Lost Experience

• 08/15 and 08/16 are the respective dates of Widmore Twins birth's in Gary Troup's 'Bad Twin' (Bad Twin).
• The Widmore gate code is #81516 (Bad Twin).

Outside the show and real life occurrences

• In the game of chess, each player starts with 16 pieces.
  • Since both players start with eight pawns, there are 16 pawns on the board when starting the game.