Calculate the value of 5! (5 factorial). (2020)

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Question: Calculate the value of 5! (5 factorial). (2020)

Options:

Correct Answer: 120

Solution:

5! = 5 × 4 × 3 × 2 × 1 = 120.

Calculate the value of 5! (5 factorial). (2020)

Calculate the value of 5! (5 factorial). (2020)

Step 1: Understand what '5!' means. It means 5 factorial.
Step 2: Know that factorial means to multiply a number by all the whole numbers less than it down to 1.
Step 3: Write down the numbers you need to multiply: 5, 4, 3, 2, and 1.
Step 4: Start multiplying the numbers together: First, multiply 5 by 4.
Step 5: 5 × 4 = 20.
Step 6: Now take the result (20) and multiply it by 3.
Step 7: 20 × 3 = 60.
Step 8: Next, take the result (60) and multiply it by 2.
Step 9: 60 × 2 = 120.
Step 10: Finally, take the result (120) and multiply it by 1.
Step 11: 120 × 1 = 120.
Step 12: The final result of 5! is 120.

Factorial – The factorial of a non-negative integer n, denoted as n!, is the product of all positive integers less than or equal to n.