104 (number)

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

In mathematics

104 is a refactorable number and a primitive semiperfect number.

The smallest known 4-regular matchstick graph has 104 edges and 52 vertices, where four unit line segments intersect at every vertex.

The second largest sporadic group $\mathbb{𝔹}$ has a McKay–Thompson series, representative of a principal modular function is $T_{2A}(\tau )$, with constant term $a(0)=104$:

$j_{2A}(\tau )=T_{2A}(\tau )+104=\frac{1}{q}+104+4372q+96256q^2+\cdots$

The Tits group $\mathbb{𝕋}$, which is the only finite simple group to classify as either a non-strict group of Lie type or sporadic group, holds a minimal faithful complex representation in 104 dimensions.

References

• Wells, D. The Penguin Dictionary of Curious and Interesting Numbers London: Penguin Group. (1987): 133

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