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GIMPS has discovered a new largest known prime number: 2^{82589933}1 (24,862,048 digits) The number 569 and its twin prime share an interesting property: both fib(569) and fib(569 + 2) are primes as well. [Dobb] 9^2 + 8^2 + 7^2 + 6^2 + 5^2 + 4^2 + 3^2 + 2^2 + 1^2 + 2^2 + 3^2 + 4^2 + 5^2 + 6^2 + 7^2 + 8^2 + 9^2 = 569. [Silva] Concatenating the integers from the prime 569 to the prime 599 we get the prime 569570571572573574575576577578579580581582583584585586587588589590591 592593594595596597598599; but if we only concatenate the primes from 569 to 599 we get the prime 569571577587593599. [Rivera]
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