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MATL, 6 bytes YftuX= Try it online! Same method as Moshi. YftuX= Yf - factor with implicit input t - duplicate u - unique X= - isequal
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#1: Initial revision
# [MATL](https://github.com/lmendo/MATL), 6 bytes ``` YftuX= ``` [Try it online!](https://tio.run/##FckrDoAwFAXRrUxYwbv9UQQJkiWUkAoMClxZfwEx5sx9tKv3YSnrdranzLX3XTg8gUhiJDMhQw4FlFDGGd4IRvzcvv4v1Rc) Same method as [Moshi](https://codegolf.codidact.com/users/53196). ``` YftuX= Yf - factor with implicit input t - duplicate u - unique X= - isequal ```