The maximum length of a credit card number is 19 digits, with the maximum length of the account number field being 12 digits (initial six-digit issuer identifier minus the final digit check number). Each issuer has 1 trillion possible account numbers.
The oldest known blue oak is in Sequoia National Park and estimated to be about 400 years old. Deciduous oaks native to the eastern United States are also long-lived. White oak (Quercus alba) is the longest-lived, with an average life of 300 years and maximum life span of 600 years in USDA zones 3b through 8b. Southern red oak (Quercus falcata) grows in USDA zones 7 through 9 and reaches 275 years.
Species that Live Longest. Many oak trees live longer than 150 years, although few reach the age of one southern live oak (Quercus virginiana) in Louisiana, which American Forests, a conservation organization, estimated to be 1,500 years old.arieties that Live a Short Time. For oak trees, 50 years counts as short-lived. A native of the southeastern United States, laurel oak (Quercus laurifolia) lives 50 to 60 years and grows to about 65 feet tall.