Math · Topic 44 of 65
Divisibility Rules
⭐ MasteredA divisibility rule tells you quickly whether a number can be divided by another without a remainder. For example, a number is divisible by 2 if it ends in an even digit.
💡 Fun fact
The number 1,236 is divisible by 3 because its digits add up to 12, which is divisible by 3.
All about Divisibility Rules
A divisibility rule is a quick check to see whether a number divides exactly by another. A number is divisible by 2 if it is even and by 5 if it ends in 0 or 5.
Divisibility rules help you simplify fractions and spot factors quickly.
🎮 Try it yourself!
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Real-life uses of Divisibility Rules
- Simplifying fractions
- Sharing items into equal groups
- Checking answers in division problems
Frequently asked questions about Divisibility Rules
Is 46 divisible by 2?
Yes, because it is even.
How do you check divisibility by 3?
Add the digits. If the total divides by 3, the number does too.