Prime Factorization — Free Online Tool

Prime factors with exponents.. Prime Factorization is a free online tool from the ToolsRift Math Calculators collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

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How to use Prime Factorization

Enter a whole number and the calculator returns its prime factors written with exponents in ascending order.

Frequently asked questions

What is prime factorization?

Expressing a number as a product of prime numbers, such as 60 = 2² × 3 × 5.

Is the prime factorization unique?

Yes — by the fundamental theorem of arithmetic, every integer above 1 has exactly one prime factorization.

How are exponents shown?

Repeated prime factors are grouped, so 8 is shown as 2³ rather than 2 × 2 × 2.

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