Find Wrong Number

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Everyone
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Content rating
Everyone
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About this app

Have you ever looked at a number sequence and realized one number just does not fit? Wrong Number Series Solver is a smart calculator designed to act as a math detective, finding the exact odd one out in any number pattern!

Finding the wrong number is often the hardest type of logical reasoning question in aptitude tests and job interviews. Instead of guessing, this app will analyze the sequence, identify the intruder, and even tell you what the correct number should have been.

How to use it:
Just type your number series separated by commas. You need at least 4 numbers for the app to detect the pattern.
Example: 2, 4, 7, 8, 10
Tap the solve button, and the app will reveal that 7 is the wrong number and it should have been 6!

Features of this app:
- Identifies the incorrect number in a sequence
- Shows you the correct number that should replace it
- Explains the hidden math pattern used in the series
- Solves arithmetic (plus/minus) and geometric (multiply/divide) sequences
- Detects complex polynomial, quadratic, and Fibonacci patterns
- Recognizes mixed mathematical rules
- Beautiful and relaxing lavender pastel user interface
- Custom decimal place settings for accurate calculations

Who is this app for?
- Job seekers practicing for cognitive, IQ, and aptitude assessments.
- Students preparing for competitive exams.
- Anyone who wants to check their math puzzle answers quickly.

Download Wrong Number Series Solver now and spot the hidden mistakes in any math puzzle instantly!
Updated on
Jun 22, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Device or other IDs
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data canโ€™t be deleted