Finding units and zero divisors of the ring $\mathbb Z_6 \times \mathbb Z_8$
24203
Finding Zero Divisors and Units of Rings $\mathbb{Z}_n \times \mathbb{Z}_m$
130104
Show $4x^2+6x+3$ is a unit in $\mathbb{Z}_8[x]$ (inverting unit + nilpotent)
7303
How many idempotent elements does the ring ${\bf Z}_n$ contain?
125604
Proof that $\mathbb{Z}$ has no zero divisors
19310
Identify the ring $\mathbb{Z}[x]/(2x)$
122312
How can I compute $\mathrm{Aut}(\mathbb{Z}/4\mathbb{Z}\times\mathbb{Z}/6\mathbb{Z})$?
16023
Are associates unit multiples in a commutative ring with $1$?
124438
Find $|(\mathbb{Z} \oplus \mathbb{Z}) / \langle(3,6)\rangle|$ and determine if its cyclic
119052
Finding invertible elements in $\mathbb{Z}/m\mathbb{Z}$
102112
Idempotents in $\mathbb Z_n$
102938
$\Bbb F_2[X]$ modules with 8 elements
147968
Calculate the Factor Group $(\mathbb{Z}_4 \times \mathbb{Z}_6)/\langle(0,2)\rangle$
119067
Basic Ring Theory Question involving the unit element
73743
Number of elements in the quotient ring $\mathbb{Z}[X]/(X^2-3, 2X+4)$
87289
Find the multiplicative inverses of all the elements in $\Bbb Z_{16}^\times$
126331
Associative ring with identity, inverses, divisors of zero and Artinianity
12502
The center of a non-Abelian group of order 8