181 LearnersLast updated on May 26th, 2025
Divisibility Rule of 209
The divisibility rule is a way to find out whether a number is divisible by another number without using the division method. In real life, we can use the divisibility rule for quick math, dividing things evenly, and sorting things. In this topic, we will learn about the divisibility rule of 209.
What is the Divisibility Rule of 209?
The divisibility rule for 209 is a method by which we can find out if a number is divisible by 209 or not without using the division method. Check whether 4180 is divisible by 209 with the divisibility rule.
Step 1: Multiply the last digit of the number by 9, here in 4180, 0 is the last digit; multiply it by 9. 0 × 9 = 0.
Step 2: Subtract the result from Step 1 from the remaining values but do not include the last digit. i.e., 418–0 = 418.
Step 3: Divide the result by 11. 418 ÷ 11 = 38.
Step 4: Check if the result from Step 3 is divisible by 19. Since 38 ÷ 19 = 2, 4180 is divisible by 209.
If the result from Step 4 isn't a whole number, then the original number isn't divisible by 209.
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Tips and Tricks for Divisibility Rule of 209
Learning the divisibility rule will help kids to master division. Let’s learn a few tips and tricks for the divisibility rule of 209.
1. Know the steps:
Memorize the steps of the divisibility rule of 209 to quickly check divisibility. This involves multiplication by 9, subtraction, division by 11, and checking divisibility by 19.
2. Use the negative numbers:
If the result we get after the subtraction is negative, we will avoid the symbol and consider it as positive for checking the divisibility of a number.
3. Repeat the process for large numbers:
Students should keep repeating the divisibility process until they reach a small number that is divisible by 209.
4. 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.
Common Mistakes and How to Avoid Them in Divisibility Rule of 209
The divisibility rule of 209 helps us to quickly check if the given number is divisible by 209, but common mistakes like calculation errors lead to incorrect calculations. Here we will understand some common mistakes that will help you to understand.
Mistake 1
Not following the correct steps.
Students should follow the correct steps: multiplying the last digit with 9, subtracting the result from the remaining digits excluding the last digit, dividing by 11, and checking divisibility by 19.
Mistake 2
Including the last digit in subtraction.
Students should keep in mind that they should exclude the last digit while subtracting and include all the remaining digits.
Mistake 3
Not repeating the process when the result is large.
Students often stop the process after they have got a large number as a result after subtraction. The process should be repeated until we get the smallest number that is divisible by 209.
Mistake 4
Not considering the negative values.
Students consider the negative values thinking divisibility rules don't apply to the negative values. But the divisibility rule is applicable for negative values too. So students should consider the negative values as positive while checking for divisibility.
Mistake 5
Confusing the steps
Students often confuse the steps or forget the steps, to avoid the error students should practice regularly.
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Divisibility Rule of 209 Examples
Problem 1
Is 4180 divisible by 209?
Yes, 4180 is divisible by 209.
Explanation
To determine if 4180 is divisible by 209, follow these steps:
1) Divide the number by 209, 4180 ÷ 209 = 20.
2) The result is an integer (20), which means 4180 is divisible by 209.
Problem 2
Check the divisibility rule of 209 for 6270.
Yes, 6270 is divisible by 209.
Explanation
To check if 6270 is divisible by 209:
1) Divide the number by 209, 6270 ÷ 209 = 30.
2) The result is an integer (30), indicating that 6270 is divisible by 209.
Problem 3
Is -627 divisible by 209?
No, -627 is not divisible by 209.
Explanation
To check if -627 is divisible by 209, remove the negative sign and follow these steps:
1) Divide the number by 209, 627 ÷ 209 ≈ 3.00.
2) The result is not an integer, meaning 627 (and thus -627) is not divisible by 209.
Problem 4
Can 836 be divisible by 209?
No, 836 isn't divisible by 209.
Explanation
To check if 836 is divisible by 209:
1) Divide the number by 209, 836 ÷ 209 ≈ 4.00.
2) The result is not an integer, so 836 is not divisible by 209.
Problem 5
Check the divisibility rule of 209 for 1672.
Yes, 1672 is divisible by 209.
Explanation
To verify if 1672 is divisible by 209:
1) Divide the number by 209, 1672 ÷ 209 = 8.
2) The result is an integer (8), confirming that 1672 is divisible by 209.
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FAQs on Divisibility Rule of 209
1.What is the divisibility rule for 209?
2.How many numbers are there between 1 and 1000 that are divisible by 209?
3. Is 627 divisible by 209?
4.What if I get 0 after subtracting?
5.Does the divisibility rule of 209 apply to all integers?
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Important Glossaries for Divisibility Rule of 209
- Divisibility rule: The set of rules used to find out whether a number is divisible by another number or not.
- Multiplication: The process of adding a number to itself a certain number of times. For example, multiplying the last digit by 9 in the divisibility rule of 209.
- Subtraction: Subtraction is a process of finding out the difference between two numbers by reducing one number from another.
- Division: The process of dividing one number by another to find out how many times the second number fits into the first.
- Integers: Integers are numbers that include all the whole numbers, negative numbers, and zero.
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Hiralee Lalitkumar Makwana
About the Author
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
Fun Fact
: She loves to read number jokes and games.
