Divisors
- Bézout Numbers
- Biunitary Divisor
- Carefree Couple
- Carmichael Condition
- Divides
- Divisibility Tests
- Divisible
- Divisor
- Erdős-Granville-Pomerance-Spiro Conjecture
- Erdős-Mirsky Conjecture
- Erdős Primitive Set Conjecture
- Euclid's Lemma
- GCD-Closed Set
- Graham's GCD Problem
- Greatest Dividing Exponent
- Honaker's Problem
- Infinitary Divisor
- Korselt's Criterion
- Least Nondivisor
- Leudesdorf Theorem
- Multiple
- Porter's Constant
- Relatively Prime
- Rule of Nines
- Steffi Problem
- Strangers
- Unitary Divisor
- Unitary Divisor Function
- Vorobiev's Theorem
- Znám's Problem