A million numbers. Your conditions.

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Combine patterns to find every matching number in the supported range.

Patterns

Require every selected “All” pattern, at least one “Any” pattern, and none of the excluded patterns.

PatternAllAnyNot
All digits identical
Five or more of one digit
Quadruple digit
Triple digit
Double pair
Repeated digit
Adjacent digit run
Only two distinct digits
Palindrome
Sequential ascending
Sequential descending
Ascending segment
Descending segment
ABAB pattern
ABCABC pattern
Alternating parity
Zigzag digits
Harshad number
Happy number
Prime
Semiprime
Perfect square
Perfect cube
Power of two
Fibonacci number
Triangular number
Factorial
Highly divisible
Binary palindrome
All ones in binary
Hex repdigit

Choose your patterns, then find exact matches.

Searches use the exact range 0–1,000,000 and RNGdle.net’s own scoring. The index loads only when you search. Finder results do not stamp your Pattern Atlas.

Read the counted collections: palindrome squares · five-digit palindrome primes · digit sum 42.

Start with a question

Palindrome squaresFive-digit palindrome primesDigit sum 42Top 1% six-digit numbers

Six-digit palindrome primes do not exist: every even-length palindrome is divisible by 11. The only even-length prime palindrome is 11 itself. Empty results can be a mathematical finding.

Read exact pattern definitions and counts →