Monroe (tree) across the base. Monroe (tree) Monroe is a huge giant sequoia tree in Giant Forest, a sequoia grove where the largest tree in the world lives - the General Sherman. The Monroe tree is the tenth largest giant sequoia in the world. It was named by Wendell Flint. Nearby trees include the Washington Tree which was once the second largest tree in the world, but since it lost half its trunk in 2005 many sequoias are now larger. The Monroe tree has dull bark and no distinguishing features except for its great size and massive top. It was measured in
Largest known prime number the progression of the largest known prime number in ascending order. Here M = 2 − 1 is the Mersenne number with exponent "n". The longest record-holder known was M = 524,287, which was the largest known prime for 144 years. No records are known before 1456. GIMPS found the fourteen latest records (all of them Mersenne primes) on ordinary computers operated by participants around the world. A list of the 5,000 largest known primes is maintained by Chris K. Caldwell, of which the twenty largest are listed below. Largest known prime number The largest known prime number () is