소수 찾기
by Anonymous · ⭐ 1 · 🍴 0
에라토스테네스의 체로 1~100에서 소수를 찾아보는 초등수학 학습 앱이에요. 가장 작은 소수부터 그 배수를 차례로 지우면 소수만 초록으로 남아요(1~100에 25개!). 어떤 수의 약수를 보고 소수(약수 2개)인지 합성수인지 구분하고, 소수 판별 퀴즈로 연습해요.
About this app
This interactive math learning tool helps students understand prime and composite numbers between 1 and 100 using the Sieve of Eratosthenes. Users can step-by-step filter out multiples of primes on a visual grid, explore the exact divisors of any number, and test their skills with a randomized prime number quiz. It provides an engaging and intuitive way to master basic number theory concepts.
Use cases
- Elementary school students practicing the concepts of prime numbers, divisors, and multiples.
- Math teachers looking for a visual aid to demonstrate the Sieve of Eratosthenes in class.
- Self-learners wanting to test and improve their speed in identifying prime and composite numbers.
Features
- Interactive 100-grid to run the Sieve of Eratosthenes step-by-step or automatically.
- Divisor explorer for numbers 2 to 100 with visual categorization of prime versus composite states.
- Randomized quiz mode with instant corrective feedback and formula breakdown for incorrect answers.
- Score tracker to measure accuracy on the prime and composite judgment quiz.