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From Wikipedia, the free encyclopedia

← 103  104  105 →
Cardinal one hundred four
Ordinal 104th
(one hundred fourth)
Factorization 23× 13
Divisors 1, 2, 4, 8, 13, 26, 52, 104
Greek numeral ΡΔ´
Roman numeral CIV
Binary 11010002
Ternary 102123
Quaternary 12204
Quinary 4045
Senary 2526
Octal 1508
Duodecimal 8812
Hexadecimal 6816
Vigesimal 5420
Base 36 2W36

104 (one hundred [and] four) is the natural number following 103 and preceding 105.

In mathematics

104 is a primitive semiperfect number[1] and a composite number, with its divisors being 1, 2, 4, 8, 13, 26, 52 and 104. As it has 8 divisors total, and 8 is one of those divisors, 104 is a refactorable number. The distinct prime factors of 104 add up to 15, and so do the ones of 105, hence the two numbers form a Ruth-Aaron pair under the first definition.

In regular geometry, 104 is the smallest number of unit line segments that can exist in a plane with four of them touching at every vertex.

In science

In other fields

104 is also:

See also


  1. ^ "Sloane's A006036 : Primitive pseudoperfect numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-27. 
This page was last edited on 20 January 2018, at 00:52
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