# Number theory

* [Modular arithmetic](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/modular-arithmetic.md)

[algebraic-number](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/algebraic-number.md) [arithmetic-function](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/arithmetic-function.md) [arithmetic-hyperops](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/arithmetic-hyperops.md) [arithmetic-hyperops2](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/arithmetic-hyperops2.md) [arithmetic-ops](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/arithmetic-ops.md) [arithmetic-ops2](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/arithmetic-ops2.md) [arithmetic](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/arithmetic.md) [combinations](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/combinations.md) [combinatorics](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/combinatorics.md) [complex-number](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/complex-number.md) [counting-theory](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/counting-theory.md) [counting](620-counting-theory/counting) [divisiblity](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/divisiblity.md) [divisor-function](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/divisor-function.md) [divisor-summatory-function](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/divisor-summatory-function.md) [divisor](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/divisor.md) [enumerative-combinatorics](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/enumerative-combinatorics.md) [fractions](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/fractions.md) [fundamental-counting-rules](620-counting-theory/fundamental-counting-rules) [gcd-lcm](terms/gcd-lcm) [hyperops](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/hyperops.md) [imaginary-number](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/imaginary-number.md) [infinity](terms/infinity) [integers](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/integers.md) [interesting-properties](terms/interesting-properties) [irrational](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/irrational.md) [lagrange-4-square-theorem](terms/lagrange-4-square-theorem) [modular-arithmetic](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/modular-arithmetic.md) [natural-number-def](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/natural-number-def.md) [natural-number](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/natural-number.md) [number-system](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/number-system.md) [number-systems](terms/number-systems) [number-theory](terms/number-theory) [number-theory2](terms/number-theory2) [number](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/number.md) [number2](terms/number2) [numeral-prefixes](terms/numeral-prefixes) [numeral-system](terms/numeral-system) [numeral](terms/numeral) [ops-addition](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/ops-addition.md) [ops-division](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/ops-division.md) [ops-multiplication](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/ops-multiplication.md) [ops-percentage](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/ops-percentage.md) [ops-subtraction](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/ops-subtraction.md) [parity](terms/parity) [partition](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/partition.md) [permutations](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/permutations.md) [polynomials](terms/polynomials) [prime-factorisation](broken-reference) [prime-number](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/prime-number.md) [prime](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/prime.md) [PRIMER](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/PRIMER.md) [probability](terms/probability) [rational](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/rational.md) [real](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/real.md) [symbol](terms/symbol) [transcendental](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/transcendental.md) [ulams-spiral](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/ulams-spiral.md) [well-ordering-principle](terms/well-ordering-principle) [whole-numbers](https://github.com/mandober/debrief.math/tree/7202acb6ad3d72a6e644cf264793844f5482ff40/300-number-theory/terms/whole-numbers.md)
