(Each kiloton has an explosive power equal to 1,000 pounds of TNT.)
Sigh. A kiloton is not the equivalent of 1000 pounds of TNT, but 1000 *tons* of TNT. That's why it's called a kiloton instead of a kilopound.
1 kiloton = 2 *million* pounds of TNT.
It's always depressing to watch these public-school graduates show off their math skills.