Difference between revisions of "Even number"

A number that is divisible (without remainder) by $2$. Even numbers are: $0, \pm2, \pm4, \pm6, \pm8, \pm10,\dots$ An integer $k$ is even if and only if the last diget of $k$ is even. For example $2139856$ is even, while $2146903$ is not even (but odd).