# 13

This number is a prime.

Single Curio View: (Seek other curios for this number)

Girolamo Cardano (1501-1576) divided cubic equations into 13 types (excluding x^3 = c and equations reducible to quadratics) in his work *Ars Magna*, which was the first Latin treatise devoted solely to algebra. [Poo Sung]

Submitted: 2005-05-16 12:58:57; Last Modified: 2009-05-04 18:44:29.

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell