jakamatonta

Jakamatonta is a Finnish adjective meaning “indivisible” or “not divisible.” Grammatically, it is used in forms such as jakamatonta to denote the partitive singular in phrases like “jakamatonta lukua” (an indivisible number). In contemporary Finnish mathematics, the standard term for numbers with no nontrivial divisors is alkulukku (plural alkulukut), i.e., prime numbers. The phrase “jakamaton luku” can appear in older textbooks or informal explanations as a straightforward, non-technical description of primes, but it is not the formal terminology used in modern mathematics.

Beyond mathematics, jakamatonta can be used metaphorically to describe indivisible units or commitments in logical, philosophical, or social contexts. In such uses, the term conveys a sense of unity or inseparability, rather than a numeric property, and is typically rhetorical rather than technical.

Etymology: the word derives from jakaa, meaning “to divide,” with the suffix -matto forming the adjective jakamaton, meaning “undivisible.” The form jakamatonta is the partitive singular.

See also: alkulukut, divisibility, number theory, Finnish mathematics terminology.