Numbers /78

How rare is 78?

78 scores 736 and sits in the Singular tier — 1 in 2,646 of all supported numbers score this high or higher. Everything below is computed from a complete analysis of all 1,000,001 numbers in range.

Number
78
Singular
Rarity Score
736
Global Percentile
Top 0.04%
Same-length rank
Top 44.4%
Among 90 2-digit numbers
Traits Detected
4

RNGdle.net’s own rarity score. Top 0.04% means that proportion of supported numbers scores at least this high. Every exact number has the same chance of being rolled. Same-length rank keeps the score and compares only numbers with 2 digits, including ties. How this differs from EP · Badge guide

Number DNA
78
Lab Observations · Descriptive Only
2 digitsEven numberZero-freeFirst < last7, 8 appear once

These notes make the number easy to read, but they add no score unless a separately counted rarity signal appears below.

Digit Profile
Length2 digits
Unique digits2
Digit sum15
Odd / even split1 / 1
Digital root6
Mathematical Properties
Composite number
8 divisors
Not a perfect square
Not a perfect cube
Not a palindrome
Rarity Drivers
4 traits detected
Two-digit numberSingular

One of only 90 two-digit numbers in range.

Range · signal frequency

+269
1 in 11,111
Triangular numberExtreme

A sum 1 + 2 + … + k for some k.

Factorization · signal frequency

+189
1 in 707
2 distinct digitsExtreme

This number uses an uncommon count of distinct digits.

Repetition · signal frequency

+155
1 in 217
Digit sum 15Exceptional

This number's digits add up to an uncommon total.

Arithmetic · signal frequency

+123
1.40%
Rarity Explanation

Strongest signal: Two-digit number. It appears in 90 supported numbers and contributes +269 after correlation decay.

Why is 78 unusual? Only 0.04% of the 1,000,001 supported numbers receive an equal or higher rarity score. This number falls in the Singular tier. Scoring is grounded in the exact frequency of each detected trait — rarer traits carry more information and contribute more to the score.

Algorithm version 1.1.0

One digit away

One digit, +276 points.

Your number

78

Singular · Top 0.04%

Best one-digit neighbour

77

Singular · Top <0.01%

Position 2: 8 → 7 · +276 points.

Gained: All digits identical, Palindrome, Digit sum 14, 1 distinct digit, Semiprime.

17 legal neighbours · same digit length · no leading zeros. This describes an alternative number, not the odds of your next roll.

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Shared patterns

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Mathematical relationships

Patterns in this number

Each of these has its own page explaining how common the pattern is and why.

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