Number puzzle solution: 410256 is the answer
4 reported
A number puzzle published earlier today has been solved. The puzzle asked for the lowest possible value of N, a number beginning with 4, such that moving the 4 to the end creates a new number that is a quarter of N. The solution, found by gradually increasing the number of digits, is N equals 410256. The puzzle was sourced from the Moscow Mathematical Olympiad 1983, via @mathematicsproblems and Kevin Gately. The puzzle setter has been publishing puzzles on alternate Mondays since 2015.
What’s reported
The puzzle asks for the lowest number N beginning with 4 where moving the 4 to the end creates a number that is a quarter of N.
The solution is N = 410256, which equals 4 times 102564.
The puzzle is from the Moscow Mathematical Olympiad 1983.
The puzzle was shared via @mathematicsproblems and Kevin Gately.
Key figures
Kevin Gately (credited as a source of the puzzle)
@mathematicsproblems (credited as a source of the puzzle)
Sources: The Guardian
