# Connection between PlaintextModulus and MultiplicativeDepth

**URL:** <https://openfhe.discourse.group/t/connection-between-plaintextmodulus-and-multiplicativedepth/912>\
**Category:** Library Questions\
**Tags:** questions, openfhe-help\
**Created:** [November 14, 2023, 11:12am UTC](https://openfhe.discourse.group/t/connection-between-plaintextmodulus-and-multiplicativedepth/912 "2023-11-14T11:12:18Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![ypolyakov](https://yyz1.discourse-cdn.com/flex031/user_avatar/openfhe.discourse.group/ypolyakov/32/47_2.png) [@ypolyakov](https://openfhe.discourse.group/u/ypolyakov)\
**Post date:** [November 14, 2023, 10:19pm UTC](https://openfhe.discourse.group/t/connection-between-plaintextmodulus-and-multiplicativedepth/912/2 "2023-11-14T22:19:56Z")

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The plaintext modulus t you are using dos not satisfy the constraint: t \bmod m =1

See [Automaticly find a good Plaintext Modulus - #2 by ypolyakov](https://openfhe.discourse.group/t/automaticly-find-a-good-plaintext-modulus/312/2) for the instructions on how to find a plaintext modulus.

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