How do I separate numbers in a combination?

You can separate numbers using spaces, commas, or other standard delimiters, with one combination per line.

Can I find numbers that repeat within a single line?

Yes, by enabling the option to count repeats inside the same group.

What output formats are supported?

The tool can output results as a readable text report, a structured JSON summary, or a CSV table.

Can I filter out numbers that only repeat once or twice?

Yes, you can adjust the minimum occurrences setting to only show numbers that repeat above your chosen threshold.

How are group positions tracked?

Each line of input is treated as a group, and the output lists the line numbers where the duplicate numbers were found.

Elysia Tools

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Data Processing

Number Combination Duplicate Finder

Paste multiple number combinations and find which numbers repeat across the whole set, with occurrence counts and group positions.

Details

What this tool helps you do

Analyze repeated numbers across multiple combinations.

Enter one combination per line, such as lottery picks, candidate sets, shortlist codes, or manually grouped numbers. The tool extracts numeric tokens from each line, counts repeated values, and can show exactly which group numbers each duplicate appeared in.

Execution

Run this tool

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Prepared example runs

Click an example to fill the form automatically. File inputs still need an upload.

2 examples

Find repeated numbers across lottery-style lines

Three lines of picks are analyzed to show that 12 and 18 repeat, and to list which line numbers they appear in.

12: 3 occurrence(s) | groups: 1, 2, 3 18: 2 occurrence(s) | groups: 1, 3 26: 2 occurrence(s) | groups: 1, 2

Raise the threshold to see only strong repeats

With a minimum occurrence threshold of 3, only the number 12 remains in the duplicate list.

{"duplicates":[{"number":"12","occurrences":3,"groups":[1,2,3],"groupCount":3}]}

Inputs

Set the required fields, then run the tool.

6 options

ContentPaste or type the main input values.1

Number CombinationstextareaRequired

SettingsAdjust formats, ranges, numbers, and modes.3

Minimum OccurrencesnumberOptionalSort ByselectOptionalOutput FormatselectOptional

TogglesEnable or disable optional behavior.2

Include Group PositionscheckboxOptionalEnabled when checkedCount Repeats Inside The Same GroupcheckboxOptionalEnabled when checked

Result

Ready for a run

Run the tool to preview files, text, structured data, or streamed output here.

Samples

Number Combination Duplicate Finder

What this tool helps you do

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Prepared example runs

Inputs

Result

Examples that match this tool

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Prepared example runs

Inputs

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Key facts

Overview

When to use

How it works

Use cases

Examples

1. Finding Overlapping Lottery Picks

2. Filtering High-Frequency Product Codes

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