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A Perfect Number is a very special number. It’s a number where all its factors (except itself) add up exactly to the number!
For Examples:
6 is a perfect number because:
1 + 2 + 3 = 6
Another perfect number is 28:
1 + 2 + 4 + 7 + 14 = 28
These numbers are rare and mysterious — and they’ve been studied for thousands of years!
- It must be positive
- All its proper factors (except itself) must add up to it
- It must have at least three factors (so it can’t be a prime)
“Factor Finder”
1️⃣ Pick a number (like 10, 12, 20…)
2️⃣ Find all the factors (numbers that divide into it evenly)
3️⃣ Add them up — is the number perfect?
Try it with 6 and 28 first — they’re the easiest to find!
Perfect numbers show how numbers can be balanced and beautiful. Even though they’re rare, they’re a cool part of number science and history!
Ready to become a math master? Take the Multiplication Quiz now! 🎯