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{{Short description|Integer number 7}} {{About|the number|the year|AD 7|other uses|7 (disambiguation)|and| No. 7 (disambiguation)}} {{Distinguish|⁊}} {{Infobox number |number=7 |numeral=[[septenary]] |factorization=[[prime number|prime]] |prime=4th |divisor=1, 7 |roman =VII, vii |greek prefix=[[wikt:hepta-|hepta-]]/[[wikt:hept-|hept-]] |latin prefix=[[wikt:septua-|septua-]] |lang1=[[Greek numeral]] |lang1 symbol=[[zeta|Z]], ζ |lang2=[[Amharic language|Amharic]] |lang2 symbol=፯ |lang3=[[Eastern Arabic numerals|Arabic]], [[Central Kurdish|Kurdish]], [[Persian language|Persian]] |lang3 symbol={{resize|150%|٧}} |lang4=[[Sindhi language|Sindhi]], [[Urdu numerals|Urdu]] |lang4 symbol={{resize|150%|{{lang|ur|۷}}}} |lang5=[[Bengali language|Bengali]] |lang5 symbol={{resize|150%|৭}} |lang6=[[Chinese numeral]] |lang6 symbol=七, 柒 |lang7=[[Devanāgarī]] |lang7 symbol={{resize|150%|७}} |lang8=[[Santali language|Santali]] |lang8 symbol={{resize|150%|᱗}} |lang9=[[Telugu language|Telugu]] |lang9 symbol={{resize|150%|౭}} |lang10=[[Tamil language|Tamil]] |lang10 symbol={{resize|150%|௭}} |lang11=[[Hebrew (language)|Hebrew]] |lang11 symbol={{resize|150%|ז}} |lang12=[[Khmer numerals|Khmer]] |lang12 symbol=៧ |lang13=[[Thai numerals|Thai]] |lang13 symbol=๗ |lang14=[[Kannada language|Kannada]] |lang14 symbol={{resize|150%|೭}} |lang15=[[Malayalam language|Malayalam]] |lang15 symbol=൭ |lang16=[[Armenian numerals|Armenian]]|lang16 symbol=Է|lang17=[[Babylonian cuneiform numerals|Babylonian numeral]]|lang17 symbol=𒐛|lang18=[[Egyptian numerals|Egyptian hieroglyph]]|lang18 symbol={{resize|200%|𓐀}}|lang19=[[Morse code]]|lang19 symbol={{resize|150%|_ _...}}}} '''7''' ('''seven''') is the [[natural number]] following [[6]] and preceding [[8]]. It is the only [[prime number]] preceding a [[cube (algebra)|cube]]. As an early prime number in the series of [[positive integers]], the number seven has symbolic associations in [[religion]], [[mythology]], [[superstition]] and [[philosophy]]. The seven [[classical planet]]s resulted in seven being the number of days in a week.<ref>[[Carl Benjamin Boyer|Carl B. Boyer]], ''A History of Mathematics'' (1968) p.52, 2nd edn.</ref> 7 is often considered [[luck]]y in [[Western culture]] and is often seen as highly symbolic.
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