Pythagorean triple
Pythagorean quadruple
natural number
natural numbers
idoneal
even number
nude number
base
radix
perfect power
superior highly composite number
Pythagorean triangle
highly composite number
harmonic series
reciprocal
cube root
multiplicative inverse
composite number
noncototient
three-quarters
three-fourths
Gaussian integer
unit function
sphenic number
hyperperfect number
radical
totative
one-third
two-thirds
Prouhet-Tarry-Escott problem
untouchable number
principal square root
practical number
hyperdeficient
quotient
confluent
digitally
Dirichlet character
Beal's conjecture
Harshad number
quadratic residue
antisymmetric
coprime
half-integer
integers
sesqui-
OEIS
prime factorization
three-eighths
gyrocommutative