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Prime Factorization Calculator

Decompose composite integers into their unique fundamental prime factor building blocks. By the Fundamental Theorem of Arithmetic, every integer greater than 1 possesses an invariant canonical prime factorization.

Exponential Canonical Form: 2

Enter an integer greater than 1

Exponential Canonical Form
2

How to Use This Calculator

  1. Enter the positive integer you wish to decompose.
  2. View the canonical prime factor power representation.
  3. Inspect the individual prime sequence, total prime count, and distinct divisors.

Formula & Calculation Methodology

n = p₁^a₁ × p₂^a₂ × ... × p_k^a_k

The Fundamental Theorem of Arithmetic states that every integer n > 1 can be represented as a unique product of prime numbers raised to positive integer exponents.

nOriginal integer factorized
p_iUnique prime factor
a_iMultiplicity exponent of prime p_i

Worked Example

Decomposing 360

number: 360
Result: 2^3 × 3^2 × 5 (Total factors: 6, Distinct primes: 3)

Decomposing prime number 97

number: 97
Result: 97 (Total factors: 1, Distinct primes: 1)

Frequently Asked Questions

What is the Fundamental Theorem of Arithmetic?↓

It states that every integer greater than 1 is either a prime number itself or can be represented as the product of prime numbers in a way that is unique up to order.

How does prime factorization help find GCD and LCM?↓

The GCD takes the lowest power of all common prime factors; the LCM takes the highest power of all prime factors appearing in either number.

Can 0 or negative numbers have a prime factorization?↓

Prime factorization is formally defined for positive integers ≥ 2. Negative numbers require factoring out -1.

What is a limitation of integer factorization algorithms?↓

Factoring enormous numbers (e.g. 2048-bit numbers used in RSA encryption) is notoriously difficult and forms the security foundation of modern internet cryptography.

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Source Citation & Disclaimer

Informational tool only; not licensed tax, legal, or financial advice.