The BBC recently reported that computers have a problem with a number, a large number, specifically the number 2,147,483,647 – which is the maximum positive value of a 32-bit signed register. A computer calculating a value higher than that number crashes. The resulting disaster could shut down a guidance system, a launch sequence or orbital probe or in the case of the European Space Administration, the loss of a rocket.
LOST was keen on hyping the Numbers as a key component to unlocking the series mysteries.
4-8-15-16-23-42.
Hmmmmmm.
If you multiply the Numbers you get 7,418,880, which is within the range of the highest maximum value in computer science.
But as one number it would be 4,815,162,342, which is OUTSIDE the range of the highest maximum value in computer science.
But if you did not input the Numbers every 108 minutes, the Hatch containment field would fail and the island would experience the purple flash (time-space disruption).
There was never a clear connection between the Numbers and the main characters since the Numbers were used as the countdown timer "prior" to the assignment by Jacob of the Candidates.
But in a circular view, that is not true. When Desmond used the fail safe key, the island purple flashed sending several of the Candidates back to 1970s. Those Candidates, already being on the island, would have been assigned their Number.
But not all the Candidates were in 1974 Dharma. Jack and Kate were thrown back in time to meet up with Sawyer, who was a security officer living with Juliet, with his crew of Hurley, Miles and Jin. Daniel Faraday then arrived at the island from the Dharma HQ in Michigan. Sawyer tried to recruit Jack to operate on young Ben, who had been shot by Sayid. So in the 1970s, before "the Incident" at the Hatch which would later require the countdown timer, Hurley (4), Sawyer (15), Sayid (16), Jack (23) and Jin (42). Locke (8) was the only missing "Number" prior to the Incident.
But Locke himself had bounced around as far back as 1954, and met with Richard Alpert. So his memory could be considered a presence in the 1970s Dharma.
So the Numbers, as a representation of Jacob's Candidates, were used as a "fail safe" device to hold back the electromagnetic energy. As such the Candidates, through their Numbers, were used as part of a "shield" mechanism to hold back the energy. For what purpose? We can only assume that if the energy was not contained, MIB could be "released" or "escape" the island which would lead to the destruction of the universe.
But with the Incident happening essentially AFTER Desmond used the fail safe key which set in motion the Candidates going into the past which would later create the Hatch protocols BEFORE the Incident, we have a serious time travel paradox.
But if the spiritual spell casting background of ancient Egypt is a guide, the Numbers could cast a spell on the smoke monster to keep it at bay. MIB's adoption of Locke's physical form and memories must have been its attempt to break "the code" or barrier of the island so it could leave.
But then the fatal blow to MIB's plans was caused not by the Numbers or the Candidates represented by them (even though Jack (23) fought MIB in the end), it was Kate (51) who delivered the final death blow by shooting Flocke on the cliff.
So what were the Numbers/Candidates symbolic of? A fatal computer error in the universe? A pathway to parallel time travel universes to avoid a paradox? The gateway code to time-space? Or a spiritual spell to keep demons at bay?