Number Theory

Divisibility Rules

Practice divisibility rules with a fast-paced Yes/No challenge. Master mental math shortcuts for numbers 2–12!

Divisibility Rules
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Steps
Tables
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Questions
Summary
Tables to practise
Choose which divisibility rules to practise. Select one or more.
2
rule
3
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4
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5
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6
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7
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8
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9
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10
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12
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Step 1 of 4
Difficulty
Choose the maximum number size for your challenge.
1
Level 1

Up to 1,000

2
Level 2

Up to 10,000

3
Level 3

Up to 100,000

4
Level 4

Up to 10,000,000

Step 2 of 5
Game Mode
How would you like to play?
Fixed Questions

Answer a set number

at your own pace

Timed Challenge

Answer as many as possible

against the clock

Step 3 of 5
Questions
How many questions would you like to answer?
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20
Step 4 of 5
Ready to play?
Check your settings before starting.
Tables —
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Step 5 of 5
Time
5:00
Score
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Question
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🧮 Ready to test divisibility rules?

Decide if numbers are divisible — answer as many as you can before time runs out!

🏆
Challenge complete
Great work!
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How to play
1
Choose your tables
Pick which divisibility rules to practise — use quick-select presets or tap individual numbers 2–12.
2
Answer Yes or No
A large number appears with a divisor. Decide if it's divisible — tap YES or NO as fast as you can.
3
Use the hints
Tap "Show Hints" during the game to see the divisibility rules for your selected tables.
Is 144 divisible by 12?
YES — 144 ÷ 12 = 12, no remainder