320

[Measure]  The number of rods in a mile.

U.S. customary units for linear measures: 1 mile = 8 furlongs = 320 rods = 1,760 yards = 5,280 feet = 63,360 inches.

 

[Measure]  The number of fluidounces in a peck.

British imperial units for dry and liquid measures: 1 bushel = 4 pecks = 8 gallons = 32 quarts = 64 pints = 256 gills = 1280 fluidounces = 36.368736 liters.

 

[Tech.]  A family of passenger airplane/jetliner Airbus: A-300 (and shorter variant A-310), A-320, (shorter variants A-318, A-319 and stretched variant A-321), A-330, A-340, A-350 and A-380 (as of 2006).

 

[World]  The ISO country code for Guatemala. (ISO-3166)

 

321

[Tech.]  A family of passenger airplane/jetliner Airbus: A-300 (and shorter variant A-310), A-320, (shorter variants A-318, A-319 and stretched variant A-321), A-330, A-340, A-350 and A-380 (as of 2006).

 

322

[Math.]  The 12th Lucas number.

 

[Math.]  454+545 = 999 = 434+565

4542 = 206,116 & 206+116 = 322

5452 = 297,025 & 297+025 = 322

and

4342 = 188,356 & 188+356 = 544 

5652 = 319,225 & 319+225 = 544.

 

323

[Math.]   (343+656 = 999 = 323+676)

3432 = 117,649 & 117+649 = 766

6562 = 430,336 & 430+336 = 766

3232 = 104,329 & 104+329 = 433

6762 = 456,976 & 456+976 = 1432 and 1+432 = 433.

 

323, 325 & 328

[Tech.]  BMW (Bayerische Motoren Werke) cars’ numbered models currently: 325 (328, 323), 330, 525, 530, 650, 750 and 760.  (Not competed all entries)

 

324

[Math.]  A square number: 324 = 182.

 

[World]  The ISO country code for Guinea. (ISO-3166)

 

325

[Math.]  A triangular number (sum of all integers from 1 to 25):

325 = 1+2+…+24+25.

 

[Sport]  One of soccer’s possible lineup tactics formations: 3-2-5 (3 defenders, 2 midfielders and 5 forwards). A slightly modified forwards line makes: 3-2-4-1 (1 striker) or 3-2-3-2 (2 strikers).

 

[World]  The height of the Eiffel Tower, Paris, France, including the television tower is 325.8 meters. Without it, the height is 300meters.

 

326

[Math.]  3265 = 3,682,035,745,376 = [368–(2+0+3+5+7+4+5+3+7+6)]5.

 

327

[Math.]  Sum 327+654 = 981 is one of only 4 cases that the equality: n+2n = 3n use each of 9 digits 1-9 once: n = 192, 219, 273 and 327.

 

328

[Math.]  A square number 5732 = 328,329, formed by concatenation of 2 consecutive numbers.

 

[World]  The ISO country code for Guyana. (ISO-3166)

 

[Biology]  The number of known species of parrots. (To be Checked)

 

329

[Math.]  A square number 5732 = 328,329, formed by concatenation of 2 consecutive numbers.

 

[Trivia]  The number of boat ramps along shoreline of the Five Great lakes.

 

 320-329

[Library]  Numbers 300-399 are the first 3 digits in Dewey Decimal Classification System call numbers for library books in Social Sciences (Economics, Government and Education…). Numbers 320-329 are for books in Political Science and International Studies.