ABSTRACT
They multiplied 4 by 3, then multiplied the answer by 9 and reduced mod 26. They got back the number they started with!
4 →×3 12 →×9 108 ≡ 4 (mod 26)
“We found the inverse-we can use it to decrypt Tim’s clues.”
They multiplied 4 by 3, then multiplied the answer by 9 and reduced mod 26. They got back the number they started with!
4 →×3 12 →×9 108 ≡ 4 (mod 26)
“We found the inverse-we can use it to decrypt Tim’s clues.”