Prime Factorization & Prime Checker
Factor any integer into primes, check whether a number is prime, and list its number and sum of divisors.
How to use the Prime Factorization & Prime Checker
- Enter or select: Whole number.
- The results (Prime factorization, Is prime?, Number of divisors, Sum of divisors, Divisors (up to 200)) are calculated instantly as you type.
- Use āCopy linkā to share the calculation with the same input values.
Formula
- n = pā^eā Ā· pā^eā Ā· ā¦
- d(n) = Ī (eįµ¢ + 1)
About this tool
Trial division with a wheel works instantly for numbers up to 2āµĀ³ (about 9 Ć 10Ā¹āµ).