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RandomInteger—Wolfram Language Documentation

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BUILT-IN SYMBOL

RandomInteger[{i_min,i_max}]

gives a pseudorandom integer in the range {i_min,i_max}.

RandomInteger[i_max]

gives a pseudorandom integer in the range {0,,i_max}.

RandomInteger[range,{n₁,n₂,…}]

gives an n₁×n₂×… array of pseudorandom integers.

Examplesopen allclose all Basic Examples (5)

A random integer in the range 1 through 10:

A random integer in the range 0 through 3:

A random choice of 0 or 1:

Twenty random integers in the range 0 through 5:

A 3×4 random array of 0s and 1s:

Scope (1)

Generate random integers of any size:

Applications (4)

A cellular automaton with random initial conditions:

Random circles at integer positions:

Random array of black and white cells:

Count how many pairs of random integers between 1 and a million are relatively prime:

Properties & Relations (3) Neat Examples (1)

A randomly filled cubic lattice:

Wolfram Research (2007), RandomInteger, Wolfram Language function, https://reference.wolfram.com/language/ref/RandomInteger.html. Text Wolfram Research (2007), RandomInteger, Wolfram Language function, https://reference.wolfram.com/language/ref/RandomInteger.html.CMS Wolfram Language. 2007. "RandomInteger." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/RandomInteger.html.APA Wolfram Language. (2007). RandomInteger. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/RandomInteger.htmlBibTeX @misc{reference.wolfram_2025_randominteger, author="Wolfram Research", title="{RandomInteger}", year="2007", howpublished="\url{https://reference.wolfram.com/language/ref/RandomInteger.html}", note=[Accessed: 12-July-2025 ]}BibLaTeX @online{reference.wolfram_2025_randominteger, organization={Wolfram Research}, title={RandomInteger}, year={2007}, url={https://reference.wolfram.com/language/ref/RandomInteger.html}, note=[Accessed: 12-July-2025 ]}

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