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# Factorial and Armstrong Number Functions in R Quiz

Test your knowledge of factorial and Armstrong number functions in R programming with this quiz. Evaluate your understanding by predicting the output of the code snippets provided.

Created by
@PropitiousXylophone

## Questions and Answers

720

### What does the is_armstrong function determine about a number?

If it is an Armstrong number

FALSE

### What is the result of min(numbers) in the code snippet?

<p>1</p> Signup and view all the answers

### The Find_Prime_No function in the code snippet is used to determine whether a given number:

<p>Is a prime number</p> Signup and view all the answers

### Find_Prime_No(6) would return:

<p>FALSE</p> Signup and view all the answers

### What is the output when is_armstrong(9474) is called in the given code snippet?

<p>TRUE</p> Signup and view all the answers

### In the code snippet, what happens when Find_Prime_No(17) is executed?

<p>Returns TRUE</p> Signup and view all the answers

### What is the output of maximum variable in the code snippet?

<p>9</p> Signup and view all the answers

### What does the min function calculate in the numbers vector?

<p>Smallest value</p> Signup and view all the answers

### Which statement accurately describes what the Find_Prime_No function does?

<p>Identifies whether a number is prime</p> Signup and view all the answers

### When factorial(0) is called, what is the output?

<p>$1$</p> Signup and view all the answers

## Study Notes

### Factorial Function

• The factorial function calculates the product of all positive integers less than or equal to a given number.
• factorial(6) returns 720.
• factorial(4) returns 24.
• factorial(0) returns 1.

### Armstrong Number

• An Armstrong number is a number that is equal to the sum of its own digits, each raised to the power of the number of digits.
• The function is_armstrong checks if a number is an Armstrong number.
• 153, 371, and 9474 are Armstrong numbers.
• 123 is not an Armstrong number.

### Minimum and Maximum Values

• The min function returns the minimum value in a set of numbers.
• The max function returns the maximum value in a set of numbers.
• In the set of numbers {5, 2, 9, 1, 7}, the minimum value is 1 and the maximum value is 9.

### Prime Number

• A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.
• The function Find_Prime_No checks if a number is prime.
• 13 is a prime number.
• The Find_Prime_No function uses a loop to check if a number is divisible by any number from 2 to n-1, where n is the input number. If it is not divisible, it returns TRUE, indicating that the number is prime.

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