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Home » General Tags » Power Query » M Functions » M List Functions » List.Transform » Page 14

List.Transform

Applies a function to each element in a list in Power Query.

Prime Factors!
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Prime Factors!

Challenge No. 178: Find the prime Factors of numbers in the question table.
Solved using:Excel (IF, LAMBDA, LET), Google Sheets, Power Query (List.Transform), Python, Python in Excel, R, and VBA.

July 28, 2025July 11, 2025
Custom Grouping! Part 16
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  • ⭐️⭐️ Easy

Custom Grouping! Part 16

Challenge No. 176: Group every five rows of the question table and then provide some of quantity for each group.
Solved using:Excel (GROUPBY, HSTACK, LAMBDA), Google Sheets, Power Query (Table.Group, List.Transform, Table.AddIndexColumn), Python, Python in Excel, and R.

July 26, 2025July 11, 2025
Add Time to Duration Format
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  • Text Processing
  • ⭐️⭐️⭐️ Intermediate

Add Time to Duration Format

Challenge No. 105: Add Text Time and Add columns together and present result in duration format i.
Solved using: Excel VBA.

July 26, 2025July 14, 2025
Company Totals for Items/Amount
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Company Totals for Items/Amount

Challenge No. 104: Prepare the result table from problem table.
Solved using: Python.

July 25, 2025July 14, 2025
Unique Dept-Name Combinations
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  • ⭐️⭐️⭐️⭐️ Advanced

Unique Dept-Name Combinations

Challenge No. 102: Prepare unique combinations of Dept and corresponding names.
Solved using: Power Query (List.Transform).

July 23, 2025July 14, 2025
Generate Demlo Numbers diamond
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  • ⭐️ Beginner

Generate Demlo Numbers diamond

Challenge No. 285: Generate Demlo Numbers diamond.
Solved using: R.

July 22, 2025July 21, 2025
Table Transformation! Part 20
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Table Transformation! Part 20

Challenge No. 171: Transform the question structure into the result structure.
Solved using:Excel (DROP, FILTER, HSTACK), Google Sheets, Power Query (List.Transform), Python, Python in Excel, and R.

July 22, 2025July 11, 2025
Unique Combinations Matching Sum
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Unique Combinations Matching Sum

Challenge No. 284: Find out unique combination of numbers from column A containing N numbers given in column B which sums to column C.
Solved using: Python in Excel.

July 22, 2025July 21, 2025
Find Divisible Substrings Sorted
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Find Divisible Substrings Sorted

Challenge No. 281: List all the substrings from Number1 which are divisible by Number2.
Solved using: Python in Excel.

July 20, 2025July 21, 2025
Extract From Text! Part 7
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Extract From Text! Part 7

Challenge No. 169: Similar to Challenge 149, extract the texts between the pairs of the characters listed below.
Solved using:Excel (ARRAYTOTEXT, LAMBDA, MAP), Google Sheets, Power Query (List.Split, List.Transform, Text.Combine), Python, Python in Excel, and R.

July 20, 2025July 11, 2025

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BYROW CHAR CODE CONCAT DROP FILTER HSTACK IF IFERROR INDEX LAMBDA LEFT LEN LET List.Distinct List.Transform LOOKUP MAP MATCH MAX MID MONTH Python Python Automation Python for Data Analysis Python for Excel REDUCE ROW ROWS SCAN SEQUENCE SORT SUBSTITUTE Table.AddColumn Table.Group Table.SelectRows TAKE Text.Combine Text.Split TEXTJOIN TEXTSPLIT TOCOL UNIQUE VSTACK XLOOKUP

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  • By Difficulty
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    • ⭐️⭐️⭐️⭐️ Advanced
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  • By Topic
    • Advanced Mathematics Problem
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    • Custom Grouping
    • Data Cleaning
    • Data Transformation
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    • Financial Problems
    • Indexing & Ranking
    • Merging & Joining
    • Missing Values
    • Pivot & Unpivot
    • Text Processing
  • By Creator
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