Hilbert number
= Hilbert number
{c}
{title2=$4k+1$}
A Hilbert number is a <positive integer> congruent to $1$ modulo $4$. The Hilbert numbers form a multiplicative set: a product of two of them is again congruent to $1$ modulo $4$.
= Hilbert number
{c}
{title2=$4k+1$}
A Hilbert number is a <positive integer> congruent to $1$ modulo $4$. The Hilbert numbers form a multiplicative set: a product of two of them is again congruent to $1$ modulo $4$.