104 (number)

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103 104 105
Cardinal one hundred four
Ordinal 104th
(one hundred and fourth)
Factorization 23× 13
Divisors 1, 2, 4, 8, 13, 26, 52, 104
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[edit]

104 is a primitive semiperfect number 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[edit]

In other fields[edit]

104 is also:

See also[edit]

References[edit]