Exactly Ed, It is always important to remember how big infinity is for a 1 digit number it 10% eg 7 for a 2 digit number its 19% eg 7,17,27,37,47,57, 67,77,87,97 70,71,72,73,74 ,75,76,78,79 for a 3 digit number its about 28.9% for a 4 digit number its about 37.89% until with a infinite number its a 100% Regardz Colin