What are factorial numbers?

Factorial numbers are values of n! for whole numbers n — for example 5! = 120 and 6! = 720.

Which factorials appear in RNGdle?

1, 2, 6, 24, 120, 720, 5040, 40320, and 362880 (0!/1! through 9!). 10! already exceeds 1,000,000.

Does RNGdle award a Factorial badge?

Yes. Any factorial in range unlocks the Factorial badge at a very high EP value.

RNGdle is a free browser game where you generate one random number from 0 to 1,000,000 each day. Instead of guessing words, RNGdle analyzes your roll for numerical patterns, awards badges, and scores EP (entropy points) so every daily number feels like a collectible result.

How does RNGdle scoring work?

RNGdle scoring adds EP from every badge your number unlocks. Badges in the same family supersede each other—only the highest-EP badge in that family counts—then your total EP ranks the roll from Trash and Common up through Rare, Epic, Anomaly, and Mythic.

How do you play RNGdle?

To play RNGdle, open the site and press GENERATE for today's official roll. Review the badges, check your EP and rarity tier, share the result if you like, then return after midnight for a fresh daily number.

What RNGdle badges can you get?

RNGdle badges cover mathematical and novelty patterns: perfect powers, consecutive digit runs, pairs and of-a-kind sets, palindromes, zero/void ladders, pi and e slices, plus meme exacts like Nice (69), Botanist (420), and Jackpot (777). New rolls can unlock many badges at once.

Is RNGdle a daily game?

Yes. RNGdle is a daily game with one official GENERATE per calendar day. After you roll, the next official number unlocks after midnight, which keeps each day's result unique and shareable.

What features are local in this RNGdle version?

In this RNGdle version, your daily roll, badge collection, lifetime EP, theme preference, and recent history are stored locally in the browser. You can play without creating an account; clearing site data resets local progress.

GuideFactorials

Factorial Numbers

A factorial number is a value of n! = 1×2×…×n for an integer n ≥ 0 (with the convention 0! = 1). Factorials grow so fast that only a short list appears below one million.

9 values in 0–1,000,000

Formula

n! = ∏_{k=1}^{n} k, and 0! = 1.

How to check

Match against the finite table 1, 2, 6, 24, 120, 720, 5040, 40320, 362880 — or repeatedly divide by 2, 3, 4… and see if you reach exactly 1.

Example

720
720 = 6! because 1×2×3×4×5×6 = 720. 721 is not on the factorial table, so it does not count.

Look up EP for this number in the calculator.

In RNGdle

Landing on a factorial is extremely uncommon in RNGdle’s range. The Factorial badge is one of the highest single-pattern EP awards in the engine.

Factorial — A factorial number (n!). (+11,111,122 EP)

Full list in range

126241207205,04040,320362,880

FAQ

What are factorial numbers?: Factorial numbers are values of n! for whole numbers n — for example 5! = 120 and 6! = 720.
Which factorials appear in RNGdle?: 1, 2, 6, 24, 120, 720, 5040, 40320, and 362880 (0!/1! through 9!). 10! already exceeds 1,000,000.
Does RNGdle award a Factorial badge?: Yes. Any factorial in range unlocks the Factorial badge at a very high EP value.