4.
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(Math Question) Remainder on dividing a power of 2**
What is the value of 2^20 mod 21?
Pick ONE option
Show answer & explanation
Answer: A. A) 1
Standard evaluation according to engineering and computational science principles.
Step-by-step Derivation:
Step 1: Analyze problem specification.
Step 2: Derive theoretical solution.
Step 3: Select corresponding answer option.