Math & Science
Prime Factorization
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Find the prime factors of any number up to 1 billion. Shows the full factorization expression, prime factor exponents, and all divisors. Free, instant, no signup.
Como usar esta ferramenta
- Enter a whole number up to one billion.
- It is broken down into prime factors by trial division.
- Read the factorisation expression, the exponents, and all divisors.
Perguntas frequentes
- What is prime factorisation?
- Writing a number as a product of primes, e.g. 360 = 2³ × 3² × 5. Every whole number above 1 has a unique prime factorisation.
- How large a number can it factor?
- Up to one billion. It divides out prime factors by trial division up to the square root, which stays fast within that range.
- What else does it show?
- The full factorisation expression, each prime's exponent, and the complete list of divisors of the number.
- Is my number uploaded?
- No. The factorisation is done in your browser; the number you enter never leaves the page.
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