Best Number Factorization Tool Apps

247+ iOS apps curated and reviewed

4.5 avg rating
16 free apps
Updated September 2026

If you already know Prime Factorization, this is the deeper bench. 247+ number factorization tool apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of September 2026.

Compare top Number Factorization Tool Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Prime FactorizationPrime FactorizationFree4.4★ (5)NoNoAug 2026
2Prime Factorization FactorizerPrime Factorization Factorizer$3.995.0★ (3)NoNoSep 2026
3PFD Calc - Prime FactorizationPFD Calc - Prime FactorizationFreeYesNoJul 2026
4PrimalityPrimalityFree4.9★ (24)NoNoSep 2026
5Prime CheckerPrime CheckerFree5.0★ (3)NoNoMay 2026
6Primes and Prime Factors AppPrimes and Prime Factors AppFree4.3★ (23)NoNoAug 2026
7Math Tools BMath Tools BFree5.0★ (1)NoNoMay 2026
8The Prime Number FinderThe Prime Number FinderFree5.0★ (2)NoNoMay 2026

Top Picks for Number Factorization Tool

Prime Factorization#1

Prime Factorization by Sohei Mori

Editor's Choice
🔧 Utilities
4.4(5 ratings)
Free
Prime Factorization screenshot 1

This utility app breaks down integers into their prime factors. It also calculates the number and sum of divisors, lists all divisors, and identifies specific number types like prime, perfect, abundant, or deficient.

Prime Factorization Factorizer#2

Prime Factorization Factorizer by Intemodino Group s.r.o.

Prime Factor Decomposition
Strong Contender
📚 Education
5.0(3 ratings)
$3.99
Prime Factorization Factorizer screenshot 1
Prime Factorization Factorizer screenshot 2
Prime Factorization Factorizer screenshot 3
Prime Factorization Factorizer screenshot 4
Prime Factorization Factorizer screenshot 5

This tool helps you find the prime factors of any integer up to 10 digits. It can factor multiple numbers simultaneously and presents results in standard or exponential form. The app also calculates the Greatest Common Factor and Least Common Multiple, storing your calculation history.

More Number Factorization Tool apps to explore

FAQ about Number Factorization Tool

What are the best number factorization tool apps for iPhone?
Prime Factorization tops our number factorization tool apps ranking as of September 2026, with a 4.4-star average from 5 App Store ratings, and it's free to download.
Yes — 16 of the top number factorization tool apps we rank are free to download, including Prime Factorization and PFD Calc - Prime Factorization.
Prime Factorization has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 247+ number factorization tool apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
Prime Factorization can factorize any integer under 100 million. This allows for a wide range of calculations within the app's capabilities.
Beyond prime factorization, Prime Factorization can identify if a number is a Prime number, Perfect Number, Multipru Perfect Number, Abundant Number, or Dificient Number.