# Understanding CKKS Moduli

**URL:** <https://openfhe.discourse.group/t/understanding-ckks-moduli/1782>\
**Category:** FHE Questions\
**Created:** [December 16, 2024, 9:52pm UTC](https://openfhe.discourse.group/t/understanding-ckks-moduli/1782 "2024-12-16T21:52:19Z")\
**Posts on this page:** 1\
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**Author:** ![Caesar](https://yyz1.discourse-cdn.com/flex031/user_avatar/openfhe.discourse.group/caesar/32/63_2.png) [@Caesar](https://openfhe.discourse.group/u/Caesar)\
**Post date:** [December 16, 2024, 10:12pm UTC](https://openfhe.discourse.group/t/understanding-ckks-moduli/1782/2 "2024-12-16T22:12:30Z")

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[This](https://openfhe.discourse.group/t/question-about-the-composition-of-the-modular-chain/1759) should answer your question.

The moduli q\_1 to q\_5 alternate between values above and below the value 2^{scaleModSize}, with one modulus larger and one smaller.

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