Possible evaluation issue when using exponentiation and modulo

[ArashPartow]

The following modulo-exponentiation doesn’t seem to give the correct answer:

mod(10749191 ^ 13; 5083823)
= 332642

Expected to get: 4189250

Attempting to perform: a^b mod n

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If this is an issue relating to overflow please close it. However I’m thinking because an arbitrary precision floating point type is being used in the backend it may not be overflow related.