Creating Materialized views WITH REDUCED PRECISION

Please take a look at the following,
Create Materialized view syntax does allow the usage of the
BUILD_MODE (IMMEDIATE / DEFERRED / PREBUILT) clause which can be used
as follows with the materialized view,
'create materialized view skills ON PREBUILT TABLE WITH REDUCED
PRECISION as select NUM from skills_data'.
Also WITH / WITHOUT REDUCED PRECISION can be used with this PREBUILT
clause above.
I need to find the table wherefrom I can know if the materialized
view has been created with reduced precision or not.

Please let me know, if you have any comments regarding this.