Write a pseudocode to calculate the factorial of a number (Hint: Factorial of 5, written as 5!=5 * 4 * 3 * 2 * 1 ) .

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Question

Write a pseudocode to calculate the factorial of a number (Hint: Factorial of 5, written as $5!=5 \times 4 \times 3 \times 2 \times 1$ ) .

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Answer

Here is the pseudocode to calculate the factorial of a number:

Pseudocode to Calculate Factorial:

INPUT number
SET factorial = 1
FOR counter FROM 1 TO number DO
    SET factorial = factorial * counter
END FOR
PRINT factorial

Explanation:

  1. INPUT number: Read the number for which you need to find the factorial.

  2. SET factorial = 1: Initialize a variable factorial to 1 which will hold the result.

  3. FOR counter FROM 1 TO number DO: Loop from 1 to the number.

  4. SET factorial = factorial * counter: Multiply factorial with the loop variable counter at each step.

  5. END FOR: End the loop when counter reaches the number.

  6. PRINT factorial: Output the calculated factorial.

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