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TIL: 1000000000000066600000000000001 is known as Belphegor's prime; a palindromic prime number (a number which reads the same both backwards and forwards and is only divisible by itself and one). The name refers to one of the Seven Princes of Hell.

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WN6o TIL that Virtual reality therapy, where a patient is carefully re-exposed to traumatic events without facing any real danger, is an effective PTSD treatment.
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