nilpotent
quadratic residue
root of unity
coprime
modular arithmetic
counting number
highly composite number
untouchable number
nude number
reduced ring
Harshad number
natural number
empty sum
base case
kill
superior highly composite number
hyperperfect number
vanish
nonzero
perfect power
hyperdeficient
totative
zero divisor
cototient
round
characteristic
signum function
zerovalent
even
semibent
Bézout's theorem
p-adic order
zeroless
idoneal
least common multiple
Proth number
positive
zerolike
pseudopolynomial
polydivisible
common fraction
p-adic ordinal
Farey sequence
1000000000000
Pochhammer symbol
continued fraction
zero
constant problem
one million million
Abel sum