Standard Lemma guide

semiprime

adj · noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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No pronunciation record was provided for this word.

adj

Meaning 1

That has properties derived directly or by extension from a semiprime.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

noun

Meaning 2

A natural number that is the product of two (not necessarily distinct) prime numbers.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, number-theory, sciences

Examples

2015, Jie Wang, Zachary A. Kissel, Introduction to Network Security: Theory and Practice, Wiley [under licence from Higher Education Press], page 113, Firstly, we should change semiprimes from time to time, where a particular semiprime should only be used in a time interval shorter than the time required to factor an RSA challenge number of a similar length. Secondly, we should use semiprimes that consist of more than 200 decimal digits.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree Proto-Indo-European *sem- Proto-Indo-European *sēmi Latin sēmi-bor. English semi- English prime English semiprime From semi- + prime.

Across languages

Translations

8 source translations are retained for this English entry.

Italian: semiprimo — Translations
Finnish: puolialkuluku — number that is the product of two primes
German: Semiprimzahl — number that is the product of two primes
Italian: numero semiprimo — number that is the product of two primes
Italian: semiprimo — number that is the product of two primes
Polish: liczba półpierwsza — number that is the product of two primes
Spanish: semiprimo — number that is the product of two primes
Spanish: biprimo — number that is the product of two primes

Word forms

Inflections and variants

semiprimes — plural

Word family

Derived and related words

Derived: semiprimal, discrete semiprime, distinct semiprime

Related: none provided

Semantic map

Other relationships

Sources

Where this information comes from

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Real reading context

Meaning relationships

Examples

Meaning relationships

semiprime in complete knowledge articles