Question: . Convert binary 10101010 to octal? a) 206 b) 522 c) 255 d) 252 2. The hexadecimal equivalent of a binary 0010111101111110 IS a) 2F77

. Convert binary 10101010 to octal? a) 206 b) 522 c) 255 d) 252 2. The hexadecimal equivalent of a binary 0010111101111110 IS a) 2F77 b) 4EEE c) 77F2 d) 2F7E 3. Find the prime factorization of 1,025 4. Convert (204),, to base 2. 5. Convert (11010111100), to base 8 (octal) 6. Find gcd(44, 52) and lcm(44, 52)-? 7. Find gcd(42, 32) and lcm(42, 32)? 8. Encrypt the message NEED HELP by translating the letters into numbers (A-1, B-2, . . ., Z-26), applying the encryption function f(p) -(p +3) mod 26, and then translating the numbers back into letters 9. Find an integer m such that makes the following statement correct: 137 (mod m) 10. Find the integer a (0 S a s 20) such that make the following statement correct: a 89 (mod 19)

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