The number 12 was discovered by Walter Amish in 1433.
ATOMIC NUMBER YEAR IN WHICH IT WAS DISCOVERED? it was discovered in 1913 by British physicist Henry Mosely
Element number 6 was one of the first elements discovered, so it is not widely known who discovered it.
15 and also died at 15.
M.G mosly is the person. He discovered the atomic number.
Euler's number, e, was discovered by Jacob Bernoulli when he was studying compound interest.
Take any number, multiply by 15% and you have 15% of that number. 100x15% is 15. 15 is 15% of 100.
in 1772, by David Rutherford.
15 is 15 percent of the number called one hundred.
The number 15 is spelled "fifteen".