Divisibility Rule of 839

The divisibility rule for 839 is a method by which we can find out if a number is divisible by 839 without using the division method. Check whether 6712 is divisible by 839 using the divisibility rule.

Step 1: Multiply the last digit of the number by 2, here in 6712, 2 is the last digit, so multiply it by 2. 2 × 2 = 4

Step 2: Subtract the result from Step 1 from the remaining values but do not include the last digit, i.e., 671-4 = 667.

Step 3: As it is shown that 667 is not a multiple of 839, the number is not divisible by 839. If the result from Step 2 is a multiple of 839, then the number is divisible by 839.

Learning the divisibility rule helps kids master division. Let’s learn a few tips and tricks for the divisibility rule of 839.

Know the multiples of 839:  

Memorize the multiples of 839 (839, 1678, 2517, 3356…etc.) to quickly check divisibility. If the result from the subtraction is a multiple of 839, then the number is divisible by 839.

Use absolute values:  

If the result we get after the subtraction is negative, we will consider its absolute value for checking the divisibility of a number.

Repeat the process for large numbers:  

Students should keep repeating the divisibility process until they reach a small number that is divisible by 839.  
For example: Check if 1678 is divisible by 839 using the divisibility test.  

Multiply the last digit by 2, i.e., 8 × 2 = 16  

Subtract the remaining digits excluding the last digit by 16, 167-16 = 151  

As 151 is not a multiple of 839, 1678 is not divisible by 839.

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 or not.

• Multiples: Multiples are the results we get after multiplying a number by an integer. For example: multiples of 839 are 839, 1678, 2517, 3356, etc.

• Absolute value: The non-negative value of a number without regard to its sign. Used when considering negative results in calculations.

• Subtraction: Subtraction is a process of finding out the difference between two numbers, by reducing one number from another.

• Integer: An integer is a whole number that can be positive, negative, or zero.