Prime Factorization Calculator (Free)

Free prime factorization calculator—break an integer into prime powers and a factor tree view. Runs in your browser.

Prime factorization writes |n| as a product of primes—e.g. 360 = 2³×3²×5. It underpins GCF, LCM, simplifying fractions, and divisibility. Enter one non-zero integer for power notation and a chip wall of prime factors.

How to use

  1. Enter non-zero n (sign ignored for factors).
  2. Read product notation and factor chips.
  3. Compare lists → GCF; combine multiples → LCM.

Short division idea

Divide by 2, then 3, 5, 7… while possible; chips summarize counts.

Examples

360 → 2³×3²×5; 84 → 2²×3×7; prime 17 → 17; 1 → no primes.

Links

Shared primes at lower powers → GCF. Arithmetic → fraction calculator; decimal swap → decimal ↔ fraction.

Frequently asked questions

Same as listing all factors?

Not quite—this page stops at primes with powers (12=2²×3). Listing every factor 1…12 is a different task.

What about 1 and prime n?

n=1 has no prime factors. A prime p factors as p alone—one chip.

Negative numbers?

Factorization uses |n|; sign does not change the prime multiset.

Short division by hand?

Divide by 2, then 3, 5, 7… while possible; power notation compresses that trail.

Vs GCF / LCM calculators?

One n fully factored here. Multiple numbers → GCF or LCM.

Why is 360 a classic example?

360 = 2³×3²×5 mixes several primes and powers—good practice. Try 360 or your homework n.

Can I save my inputs?

Yes. Copy link below the form keeps your current inputs so you can share the scenario or save it for later.

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