A Cello is the worlds largest instrument. If im wrong, please improve this answer and leave a comment bellow. :)

the worlds largest tree has been moved to a new place and I'm not quite shore but i think they put it in kings park if I'm wrong sorry i don't no much that is all i know and please improve if you can thank you for reading my answer

In May 23, 2003 the largest known prime number required 4,053,946 digits to be written fully Iit won't be written out here). As calculation techniques improve more and biggger primes will be found and proven.

Better network then others, largest 3G provider. Verizon spends millions every year to improve there network. Better service.

Big Bazaar is the largest supermarket chain in the country of India. A questionnaire on customer satisfaction can let the store know where they can improve on.