Conversation so far:
what kind of bomb was used in hiroshima
The atomic bomb dropped on the city of Hiroshima was a uranium gun type bomb that exploded with about thirteen kilotons of force
when were the atomic bombs dropped over japan
The atomic bomb, Little Boy, was dropped over Hiroshima on August 6, 1945, and Fat Boy was dropped over Nagasaki on August 9, 1945.

Question: how many people were killed
Self-contained rewrite: how many people were killed because of the atomic bomb dropped in hiroshima