Prime Curios!: 202

202
(another Prime Pages' Curiosity)

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A semi-prime palindrome equal to (2 + 3 + 5 + 7)² - (2² + 3² + 5² + 7²). It's the only such case for all primes < 2,000,000,000. [Trotter and De Geest]

202^293 begins with the digits 293 (a prime). Note that 293^202 begins with the digits 202 (a palindrome). [Hartley]

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