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1 (число) Съдържание Знакът 1 | Математически свойства | Думи с чужд произход | Общи сведения | Вижте също | Навигацияредактирате7724620-2sh85094739

Цели числа


естествено числонуладвеарабски цифриримскицифрапозиционните бройни системиматематикатаумножениетопръстенпросто числосъставно число












1 (число)




от Уикипедия, свободната енциклопедия

(пренасочване от Едно)





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1





← 0
1
2 →

Penny black.jpg
Най-старата пощенска марка от 1 пени

Бройно име
едно
Редно име
първ
Факторизация
няма
Делители
1
Римски цифри
I
Гръцка представка
моно
Латинска представка
уни
Двоично
12
Осмично
18
Шестнадесетично
116

1 в Общомедия

Едно е естествено число, следващо нула и предхождащо две. С арабски цифри се бележи „1“, а с римски – „I“.




Съдържание





  • 1 Знакът 1


  • 2 Математически свойства


  • 3 Думи с чужд произход


  • 4 Общи сведения


  • 5 Вижте също




Знакът 1 |


Освен за числото едно, знакът 1 се използва и като цифра в позиционните бройни системи.


В математиката с 1 се отбелязва неутралният елемент спрямо умножението в един пръстен.



Математически свойства |


По дефиниция числото едно не е нито просто число, нито съставно число.


  • Ако умножим или разделим произволно число N с числото 1 се получава същото число N.

  • Степенуване: n1 = n


Думи с чужд произход |


Думи, образувани чрез гръцката представка mono



монарх – монада – моно – моногамия – моногенеза – монокъл – мономания – монолит – монолог – монопол – монотеизъм – монотонност

Думи, производни на латинската дума solus



солист – соло

Думи, производни на латинската дума unus



универсален – университет – уникат – униформа – уния


Общи сведения |



  • Джордж Вашингтон (1789 – 1797) е първият президент на САЩ.


Вижте също |


  • Прости числа

  • Имена на числата




Нормативен контрол


  • GND: 7724620-2


  • LCCN: sh85094739




Взето от „https://bg.wikipedia.org/w/index.php?title=1_(число)&oldid=8973268“.










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