Divisibility Rule of 680

The divisibility rule for 680 is a method by which we can find out if a number is divisible by 680 or not without using the division method. Check whether 2040 is divisible by 680 with the divisibility rule.
 

Step 1: Check if the number is divisible by 2 (the last digit should be even). Here in 2040, 0 is the last digit, which is even. 

Step 2: Check if the number is divisible by 5 (the last digit should be 0 or 5). Here, 2040 ends with 0. 
 

Step 3: Check if the number is divisible by 17 (use the division method for confirmation or subtract 17 repeatedly to check divisibility). 2040 divided by 17 equals 120, which is a whole number.

Therefore, since 2040 passes all these tests, it is divisible by 680.

Learning the divisibility rule will help kids master division. Let’s learn a few tips and tricks for the divisibility rule of 680.
 

• Know the factors of 680: Memorize the factors of 680 (2, 5, 17) to quickly check divisibility. If a number is divisible by these factors, it is divisible by 680.
   
• Use the negative numbers: If you end up with negative results during your calculations, consider the absolute value for checking divisibility.
   
• Repeat the process for large numbers: Students should keep repeating the divisibility process until they confirm divisibility for large numbers through smaller factors.
  
  For example: Check if 1360 is divisible by 680 using the divisibility test.
  
  Check divisibility by 2: 1360 ends with 0, which is even. 
  
  Check divisibility by 5: 1360 ends with 0. 
  
  Check divisibility by 17: 1360 divided by 17 equals 80, which is a whole number. 
  
  Thus, 1360 is divisible by 680.
   
• Use the division method to verify: Students can use the division method as a way to verify and cross-check their results. This will help them to verify and also learn.
   

• Divisibility rule: The set of rules used to find out whether a number is divisible by another number without direct division.
   
• Factors: Numbers that divide another number completely without leaving a remainder. For example, factors of 680 are 2, 5, and 17.
   
• Integers: Numbers that include all the whole numbers, negative numbers, and zero.
   
• Subtraction: The process of finding the difference between two numbers by reducing one number from another.
   
• Division: The operation of discovering how many times one number is contained within another.