what is the biggest quantum computer?

what is the biggest quantum computer?   Is it still the Google  crown with 72 qubit processor?

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Google: 72 bit

Intel: 49 bit

IBM: 20 bit

These are the publicly annouced prototypes, made by the american corporations.in the last year.
No information if they are actually usable (just the annoucements from the corporations itself, no third party verify). Also, there is no puiblic information about quantum computer prototypes outside america, but other prototypes exist as well.

Answered on October 2, 2019.
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