How to find the product of the digits of a number?

Given a number, the task is to find the product of the digits of a number. Recommended: Please try your approach on {IDE} first, before moving on to the solution. Get the rightmost digit of the number with help of remainder ‘\%’ operator by dividing it with 10 and multiply it with product.

What is a special two-digit number?

A special two-digit number is a number such that when the sum of the digits of the number is added to the product of its digits, the result is equal to the original two-digit number.

How do you find two digit numbers in math?

Find the number. A two-digit number is obtained by either multiplying the sum of the digits by 8 and then subtracting 5 or by multiplying the difference of the digits by 16 and then adding 3 . Find the number. Let the tenth’s digit be x and one’s digit be y.

How to increase the sum of the digits of a number?

When the number of digits of a number exceeds , we can’t take that number as an integer since the range of long long int doesn’t satisfy the given number. So take input as a string, run a loop from start to the length of the string and increase the sum with that character (in this case it is numeric) Below is the implementation:

How many digits are in a prime number?

Test for a prime number for any integer, or whole number, less than 10,000,000,000,000 (less than 10 trillion or a maximum of 13 digits). What is a Prime Number? A prime number is any integer, or whole number, greater than 1 that is only divisible by 1 and itself.

What is the second largest 3-digit prime number?

999 is the largest 3-digit number, but as it is divisible by 3 3, it is not prime. 998 is the second largest 3-digit number, but as it is divisible by 2 2, it is not prime.

What is the only integer that is not a prime number?

All positive integers greater than 1 are either prime or composite. 1 is the only positive integer that is neither prime nor composite. Prime numbers are critical for the study of number theory. Nearly all theorems in number theory involve prime numbers or can be traced back to prime numbers in some way.