# Which of the following is 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.

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### Answers by country

Tariff numbers

Taxicab numbers

Bicycle numbers

Car numbers

answers

Australia

21

the Netherlands

17

Republic of Ireland

11

Pakistan

15

the United States

83

India

63

France

12

Poland

3849

Austria

66

Germany

501

the United Kingdom

64

Canada

17

Italy

10

Switzerland

70

Greece

12