Thirteen | 13 | baker's dozen (anglický)
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Definícia vek 11 úroveň 1
A baker's dozen is a dozen + 1. Traditionally bakers were fined if they sold bread that was underwieght. To deal with this they would add an extra loaf to each dozen they sold.
It is the fifth Lucky number (even though in England it is traditionally an unlucky number).
It is the fifth Lucky number (even though in England it is traditionally an unlucky number).
Výklad vek 11 úroveň 1
Thirteen is the sixth prime number, it is the 7th Fibonacci number, and the sum of two squares: 4+9.
It is the number of Archimedean polyhedra.
φ(13)=12, d(13)=2, σ(13)=14 .
It is the number of Archimedean polyhedra.
φ(13)=12, d(13)=2, σ(13)=14 .
Prepojenia
- širší:
- (en) 10-19
- odkazy na iné termíny:
- (en) Fibonacci number
- (en) Lucky number
- (en) Prime number
- odkazy na tento termín:
- (en) Archimedean polyhedron
Finančná podpora: