➗ Math

Prime Factorization Calculator

Break a whole number into its prime factors.

Results

Prime factorization
2^3 × 3^2 × 5
Number of divisors
24

📊 Prime Factorization Calculator chart

Exponent of each prime.

What is the Prime Factorization Calculator?

Break a whole number into its prime factors. From percentages and fractions to logarithms and quadratic equations, these math calculators show exact results — using arbitrary-precision integers wherever whole-number answers can get very large.

Prime Factorization Calculator – free online math tool illustration
Prime Factorization Calculator — free, exact and private.

How to use the Prime Factorization Calculator

  1. Enter your whole number.
  2. Results update automatically as you type; you can also press Calculate.
  3. Read the output: prime factorization, number of divisors.
  4. Use the 📊 chart to see the result visually, then copy or share it.

Formula and method

Repeatedly divide by the smallest prime factor

Worked example

With whole number = 360, the Prime Factorization Calculator returns prime factorization: 2^3 × 3^2 × 5; number of divisors: 24.

Tips for better results

  • Use the formula section on each page to check your homework method, not just the answer.
  • For very large factorials, combinations and base conversions we use exact big-integer math.
  • Floating-point results are rounded to 12 significant digits to remove binary noise.

Frequently asked questions

What does the Prime Factorization Calculator do?

Break a whole number into its prime factors.

How is it calculated?

The Prime Factorization Calculator uses this method: Repeatedly divide by the smallest prime factor.

Can you show an example?

With whole number = 360, the Prime Factorization Calculator returns prime factorization: 2^3 × 3^2 × 5; number of divisors: 24.

Is the Prime Factorization Calculator accurate?

Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.

Is this tool free and private?

Yes — the Prime Factorization Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.

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