144

A gross or great dozen is equal to 144 = 122, or one dozen dozen. Gross It is a commonly used quantity by small wholesalers.
In Czech language, 144 is called "veletucet", which means "great-twelve".
Aarex Tiaokhiao calls this number duodecimal-booiol.Part 1 (LAN) - Aarex Googology
Furthermore, it is the largest possible number of shopping hours in most s in some countries, since they have laws requiring observation of a weekly rest day.
== Properties ==
*It is a composite number.
*144 is the smallest known integer n such that \(n^5\) can be expressed as 4 5th powers; \(27^5 + 84^5 + 110^5 + 133^5 = 144^5\). It is the first counterexample of found with CDC 6600 computer by Lander and Parkin in 1966.L. J. Lander & T. R. Parkin. "Counterexample to Euler’s conjecture on sums of like powers". Bulletin of the America Mathematical Society, 1966; 72, 1079. 
*It is the largest Fibonacci number that is also a square. Indeed, it's the largest Fibonacci number to be any perfect power.Florian Luca, Yann Bugeaud, Maurice Mignotte, Samir Siksek, Fibonacci numbers at most one away from a perfect power. Elem. Math. 63 (2008), no. 2, pp. 65–75. Theorem 1
*It is the smallest positive integer n for which the number nn cannot be represented in the .
*5144 is the first power of 5 larger than a googol.
== In chess ==
It is also the number of possible king moves in 5×5 minichess.
== In radiocommunications ==
The starts at 144 .
== See also ==
*Great gross
== Sources ==
Category:Numbers
Category:Chess
Category:Class 1
Category:Fibonacci numbers
Category:Numbers in engineering
Category:Numbers with 3 digits
Category:Powers of 12