# Is the modulus congruent with 0 (zero)?

Is it true that, given that I have a modulus m, then m is congruent with 0?

My reason for thinking that this is the case is the observation that for any integer k, then

$\ km \ (mod \ m) \cong \ 0$

Since the residue (remainder) when a number is divided by a multiple of the modulus would be 0.

• Yes, $m\equiv0\pmod{m}$ – saulspatz Jun 23 '18 at 23:36
• "any number k" no, any integer $k$. – Gerry Myerson Jun 24 '18 at 0:40

$km$ ($mod$ m) means remainder of $km$ divided by $m$.
so $\frac{km}{m}\equiv0$ ($mod$ $m$).