Prime Number Tester v1.02
APK · 304.3 KB · version code 3 · Android 4.4W+ · uploaded Jul 27, 2019
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File information
- Version
- v1.02 (3)
- Uploaded
- Jul 27, 2019
- Size
- 304.3 KB
- Requires
- Android 4.4W+ (API 20)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 04248e3b0ce649ab72aa8eb89c15ed30
- Signing certificate (SHA-1)
- 3B:7A:04:3E:8F:E5:65:C0:BB:4E:E1:C5:04:A3:FB:FA:26:2C:5D:A8
- Signed by
- CN=Cliff Koperski
- File name
- com-primenumbertester-3-46809781-04248e3b0ce649ab72aa8eb89c15ed30.apk
- Package
- com.primenumbertester
- Downloads (all versions)
- 10+
- Age rating
- PEGI 3 · Everyone
What's new in v1.02
Updated API levels
Security & authenticity
Security rating: Unknown
Signing certificate
- Certificate issued to “Cliff Koperski” The developer's name — though anyone can put any name in a certificate.
Store checks
- Developer signature not checked yet Jul 27, 2019
- Antivirus scan passed Dec 31, 2021
- Uploaded by “harrytho” Bronze tier · 647 followers · uploading since 2016
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself.
How to install Prime Number Tester on Android 4.4W+
You'll need about 608.7 KB of free space.
- Download the APK — tap Download APK above (304.3 KB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-primenumbertester-3-46809781-04248e3b0ce649ab72aa8eb89c15ed30.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 04248e3b0ce649ab72aa8eb89c15ed30. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. This file has no malware rating from the source store. If Play Protect warns about it, tap Cancel. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Prime Number Tester — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 4.4W+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.