math
posted by wan on .
from hundreds chart,what % of the numbers are prime numbers

Go through the numbers 1 through 100, cross out all the numbers that are divisible by 2 (except 2), then the numbers that are divisible by 3(except three), then the numbers that are divisible by 5 (4 should be crossed out because it was divisible by 2) Do this all the way up to 50
Count the number of primes
2, 3, 5, 7, 11, 13, 17, 19 . . .
Divide this by 100