prime!

prime!® computes prime factorization.

Jesús Gallinal · com.dekaedra.prime

Not rated yet 1K+ downloads v16 904.9 KB Android 4.2+ PEGI 3 · Everyone

Download APK 904.9 KB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v16 (16)
Updated: Aug 27, 2026 (1 month ago)
APK size: 904.9 KB
Requires: Android 4.2+ (API 17)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Mar 21, 2023 (at least)
Website: dekaedra.com
Developer contact: [email protected]

About this APK

prime! is an app by Jesús Gallinal in the Education category, listed since at least March 2023. It has no native code, so it runs on any Android processor.

Since version 14, the APK grew from 281.3 KB to 904.9 KB.

What's new in v16

Usage and presentation improvements.

Description

From the listing uploaded by “appupdater”.

prime!® computes prime factorization of integers as large as you want.

Version history

3 versions are listed, going back to v14.

v16 LATEST Aug 27, 2026 904.9 KB TRUSTED v15 Feb 1, 2026 281.1 KB TRUSTED v14 Aug 20, 2024 281.3 KB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 27, 2026.
Certificate issued to “dekaedra” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Aug 27, 2026
Validated against Google Play Aug 27, 2026
Signed byCN=Jes?s Gallinal, OU=dekaedra, O=dekaedra, L=Madrid, ST=Madrid, C=ES
Signing certificate (SHA-1)5F:26:CD:5B:0F:31:6E:26:D8:E5:F6:98:D8:65:D9:08:26:76:26:7C
File MD588e48e40d277e622266f738ae2776d71
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Required hardware & features

Basic touch input android.hardware.faketouch

prime! APK: questions and answers

Can I install this APK over the version I already have?

Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.

Is the prime! APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 88e48e40d277e622266f738ae2776d71.