✳ The number rarity lab

RNGDLE Number Rarity Calculator

RNGDLE.ART is a free number rarity calculator that checks any integer from 0 to 1,000,000 against 31 exact digit patterns — including palindromes, repdigits, primes, Harshad numbers and Fibonacci numbers — and returns a rarity score plus a global percentile.

Integers from 0 to 1,000,000

Number
142,857
Distinct
Rarity score222
Global percentileTop 22.97%
Detected traits4

The percentile compares this score with every supported number. Each exact number is equally likely on a random roll.

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Number DNA

142857

Digit profile

Digits
6
Distinct digits
6
Digit sum
27
Odd / even digits
3 / 3
Digital root
9

Mathematical properties

Divisors
32
Prime factorization
3^3 × 11 × 13 × 37
Binary
100010111000001001
Hexadecimal
22E09

What makes it unusual

4 Detected traits

Digit sum 27

Digit arithmetic
+84
5.53%

6 distinct digits

Repetition
+58
13.61%

Zigzag digits

Sequences
+57

At least four digits strictly alternate between rising and falling.

13.64%

Harshad number

Digit arithmetic
+24

A positive number divisible by the sum of its digits.

9.54%
How scoring works

Seven degrees of rarity

01 Standard50–100%
02 NotableTop 50%
03 DistinctTop 25%
04 RareTop 10%
05 ExceptionalTop 5%
06 ExtremeTop 1%
07 SingularTop 0.1%

What is an RNGDLE rarity score?

The score measures information in a number's matched patterns, digit sum, distinct-digit count and short length within 0–1,000,000. Less frequent features usually contribute more, with overlapping features in the same family discounted.

Probabilities come from an exhaustive count of all 1,000,001 integers. Scores do not predict the next random result. Top % includes every tied score; a smaller percentage means a higher rarity ranking.

How scoring works →

How to check your number

  1. Enter any integer from 0 to 1,000,000 above; leading zeros are not part of the analysis.
  2. Select Analyze to see the rarity score, Top % and matched patterns.
  3. Open a pattern to read its rule, or compare two numbers to inspect their differences.
Compare →

The 31 patterns we test

The atlas covers repetition, symmetry, sequences, arithmetic, factorization and numeral representations. Every pattern page gives its precise rule, exact full-range count, examples and highest-scoring representative.

Rarest numbers between 0 and 1,000,000

The current full-range leader is 3, scoring 1,677. The complete ranking includes 0 and single-digit numbers, with the top 100 and the highest-scoring representative of each pattern.

View the full rarest-numbers ranking →

Frequently asked questions

What is an RNGDLE rarity score?

The score measures information in a number's matched patterns, digit sum, distinct-digit count and short length within 0–1,000,000. Less frequent features usually contribute more, with overlapping features in the same family discounted.

How rare is my number?

Enter any integer from 0 to 1,000,000 and select Analyze. The result shows its patterns, score and Top %: the percentage of all 1,000,001 integers scoring at least as high, including ties. A smaller Top % means a higher rarity ranking.

Are rare numbers less likely to be rolled?

No. In a uniform draw, each specific integer has probability 1/1,000,001. This tool measures uncommon features and cannot predict future results.

Is RNGDLE.ART the official tool for rngdle.com?

No. RNGDLE.ART is an independent number tool and browser game, unaffiliated with rngdle.com or any similarly named site. Its scores are not another game's scores or answers.