Text this: Elementary Number Theory: Primes, Congruences, and Secrets

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 / ____||   / _ \\      ___     / _ \\   /_____// 
/ //---`'  | / \ ||    /   ||  | / \ ||  `____ `  
\ \\___    | \_/ ||   | [] ||  | \_/ ||  /___//   
 \_____||   \___//     \__ ||   \___//   `__ `    
  `----`    `---`       -|_||   `---`    /_//     
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