# Which of the following exist as a term in mathematics?

Tariff numbers

Taxicab numbers

Bicycle numbers

Car numbers

is defined as the smallest number that can be expressed as a sum of two positive cube numbers in n distinct ways. The name is derived from a conversation in about 1919 involving mathematicians G. H. Hardy and Srinivasa Ramanujan. Hardy has ridden in taxi-cab No. 1729, and remarked that the number seemed to be rather a dull one. Ramanujan replied that the number was very interesting, as the smallest number expressible as the sum of two cubes in two different ways.

Tariff numbers

Taxicab numbers

Bicycle numbers

Car numbers

answers

Switzerland

16

India

18

Poland

1344

Germany

21

the United Kingdom

24

Unknown

67

the United States

20