Srinivasa Ramanujan - 2025 ACF Winter

Question

Since 163 is a Heegner number, this mathematician’s constant, equal to e to the power of “pi root 163,” is remarkably close to an integer. For 10 points each:

[10m] Name this mathematician. A conversation between G. H. Hardy and this mathematician about the number 1729 led to the coining of the term “taxicab number.”

ANSWER: Srinivasa Ramanujan (“shree-nee-VAH-suh ra-MAH-noo-jun”) [accept Ramanujan constant]

[10h] Ramanujan’s constant is almost an integer because a degree-two instance of these constructs, formed by adjoining “root negative 163” to the rationals, has class number one. These constructs are finite extensions of the rationals.

ANSWER: algebraic number fields [prompt on fields; prompt on field extensions; prompt on quadratic fields by asking “can you be less specific?”]

[10e] In number fields with class number greater than one, this property and irreducibility are no longer equivalent in the associated ring of integers. The fundamental theorem of arithmetic concerns the factorization of an integer into numbers with this property.

ANSWER: primality [or primeness; or being prime]

<Editors, Other Science>

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Summary


California	Main	Y	5	24.00	100%	100%	40%
Canada	Main	Y	6	20.00	100%	100%	0%
Florida	Main	Y	12	18.33	100%	83%	0%
Great Lakes	Main	Y	6	8.33	67%	17%	0%
Lower Mid-Atlantic	Main	Y	7	12.86	71%	57%	0%
Midwest	Main	Y	8	16.25	88%	75%	0%
North	Main	Y	11	16.36	91%	73%	0%
Northeast	Main	Y	5	18.00	100%	80%	0%
Overflow	Main	Y	4	15.00	100%	50%	0%
Upstate NY	Main	Y	8	15.00	75%	75%	0%
2025 ACF Nationals	2025-08-09	Y	14	21.43	100%	93%	21%
2024 ARCADIA at UC Berkeley	04/19/2025	Y	4	22.50	100%	100%	25%

Data


Stanford B	Berkeley D	10	0	10	20
Berkeley B	Berkeley A	10	10	10	30
Berkeley C	Stanford C	10	10	10	30
Berkeley F	UCSC	10	0	10	20
Berkeley E	Stanford A	10	0	10	20
UCLA B	Claremont Pitzer	10	0	10	20
UCSD Vices and Virtues	UCI	10	0	10	20
Claremont Scripps	UCLA A	10	0	10	20
USC	UCLA D	10	0	10	20
UCSB	UCSD What Hath God Wrought	10	0	10	20
Guelph A	Western Ontario	0	0	10	10
Carleton	Guelph B	10	0	10	20
Toronto A	McGill B	10	0	10	20
McMaster C	Toronto E	10	0	10	20
McMaster A	Ottawa	10	0	10	20
Queen's B	McGill C	10	0	10	20
Toronto F	Toronto Metropolitan	10	0	10	20
Waterloo	Toronto D	10	0	10	20
Toronto H	Toronto C	10	0	10	20
Toronto I	Queen's A	0	0	10	10
Toronto G	Toronto J	10	0	10	20
Toronto B	Toronto K	10	0	10	20
UCLA C	UCSD Two Running Violet V Forms	10	0	10	20
ERAU A	FSU	0	0	0	0
Melbourne A	UF D	0	0	10	10
UF B	UCF A	0	0	10	10
UF A	FIU	0	0	10	10
UCF B	UF E	10	0	10	20
USF	ERAU B	0	0	0	0
CWRU B	CWRU A	10	0	10	20
MSU B	CWRU C	0	0	0	0
Kenyon A	Kenyon B	0	0	0	0
Pitt A	MSU A	10	0	10	20
OSU B	OSU A	10	0	10	20
OSU D	OSU C	0	0	10	10
CWRU D	Pitt C	10	0	10	20
Tennessee A	South Carolina A	10	0	10	20
Liberty A	Liberty C	0	0	10	10
Tusculum	South Carolina B	10	0	10	20
Virginia A	Clemson B	10	0	10	20
Virginia Tech A	Roanoke	0	0	10	10
Virginia Tech B	NC State	10	0	0	10
Clemson A	James Madison	10	0	10	20
Virginia B	Tennessee B	10	0	10	20
Johns Hopkins A	VCU A	10	0	10	20
George Mason A	Catholic University	0	0	10	10
George Mason C	George Washington B	0	0	10	10
Georgetown B	George Washington A	0	0	10	10
Maryland B	Johns Hopkins B	10	0	10	20
Georgetown A	Maryland C	10	0	10	20
NYU A	Penn A	10	0	10	20
NYU B	Maryland D	10	0	10	20
Penn B	Johns Hopkins C	10	0	10	20
UMBC A	Notre Dame E	10	0	10	20
Rutgers B	Rutgers C	10	0	10	20
Columbia A	Lehigh B	10	0	10	20
Swarthmore A	Columbia B	10	0	10	20
Princeton A	Columbia C	10	0	10	20
Lehigh A	Rowan A	0	0	10	10
WashU B	Missouri A	10	0	10	20
WashU A	Missouri B	10	0	10	20
WashU C	William Woods	0	0	10	10
WashU D	Truman State	0	0	10	10
Maryland A	George Mason B	10	0	0	10
Mississippi State A	Auburn A	0	0	10	10
Alabama A	UAB A	0	0	0	0
Georgia Tech B	Alabama B	10	0	10	20
Georgia Tech C	Vanderbilt A	10	0	0	10
Georgia Tech D	Huntsville B	10	0	10	20
Huntsville A	Sewanee A	10	0	10	20
Vanderbilt B	Georgia Tech A	10	0	10	20
Bruin A	Auburn B	10	0	10	20
Imperial B	City St George's A	10	0	10	20
Imperial A	Birmingham A	10	0	10	20
Cambridge C	Bristol A	10	10	10	30
Southampton B	Durham B	0	0	10	10
Edinburgh A	Cambridge A	10	0	10	20
Cambridge D	Imperial C	10	0	10	20
Manchester A	LSE A	10	0	10	20
Bristol B	Manchester B	10	0	10	20
Oxford A	Southampton A	10	0	10	20
Sheffield B	Oxford B	10	0	10	20
Lancaster A	Sheffield C	10	0	10	20
Sheffield A	Warwick A	10	10	10	30
Warwick B	Edinburgh B	10	0	10	20
Cambridge B	Durham A	10	10	10	30
Binghamton A	RIT A	10	0	10	20
RIT B	Cornell-DII	10	10	10	30
Rochester	ESF	10	0	10	20
Binghamton B	Syracuse	10	0	10	20