Kelly is a given name, popular in English-speaking and some South-American countries. Kelly is actually an Irish last name, but it has been given for some time as a first name to both boys and girls though it's much more common for girls.
84 is the sum of the first seven
triangular numbers, as well as the sum of a twin prime (41 + 43). Being thrice
a perfect number, 84 is itself a semi perfect number.84 is the limb sup of the
largest finite subgroup of the mapping class group of a genus g surface divided