Primary Shards and Replica Shards

Elastic Stack Elasticsearch
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I have three Master Nodes in a cluster: If I plan to have 1 Primary shard and two Replica shards, at any point of time how many nodes can fail without any data loss ? What would be the recommended numb er of Primary shards and replica shards ?

[https://www.elastic.co/guide/en/elasticsearch/guide/master/_scale_horizontally.html#cluster-three-nodes] As per this if we have three Master Nodes in a cluster with One Primary shard and two Replica shards each then we can afford to lose two nodes without losing any data

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You can lose 2 nodes without losing data, but once you lose the second node the cluster will no longer accept writes or updates if there is not a majority of master eligible nodes available.

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