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115 LearnersLast updated on February 18th, 2025
Divisibility Rule of 855
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 855.
What is the Divisibility Rule of 855?
The divisibility rule for 855 is a method by which we can find out if a number is divisible by 855 or not without using the division method. Check whether 76950 is divisible by 855 with the divisibility rule.
Step 1: Check if the number is divisible by 5 (since one of the prime factors of 855 is 5). The last digit of 76950 is 0, which is divisible by 5.
Step 2: Check if the number is divisible by 3 (another prime factor of 855). Add the digits: 7 + 6 + 9 + 5 + 0 = 27. Since 27 is divisible by 3, 76950 passes the test for 3.
Step 3: Check if the number is divisible by 19 (since the third factor of 855 is 19). Use long division or a calculator to verify that 76950 is divisible by 19.
Since 76950 is divisible by 5, 3, and 19, it is divisible by 855.
Tips and Tricks for Divisibility Rule of 855
Learning the divisibility rule will help kids master division. Let’s learn a few tips and tricks for the divisibility rule of 855.
Know the factors of 855:
Memorize the factors of 855 (3, 5, 19) to quickly check divisibility.
Use the sum of digits for 3: For the factor 3, remember to add all digits and check if the sum is a multiple of 3.
Verify with multiplication:
Once you verify divisibility by the individual factors, multiply the factors back to confirm divisibility by 855.
Check with the division method:
Students can use the division method as a way to verify and crosscheck their results. This will help them to verify and also learn.
Common Mistakes and How to Avoid Them in Divisibility Rule of 855
Divisibility Rule of 855 Examples
Problem 1
Is 1710 divisible by 855?
Explanation
Problem 2
Check the divisibility rule of 855 for 2565.
Explanation
Problem 3
Is -3420 divisible by 855?
Explanation
Problem 4
Can 4275 be divisible by 855 following the divisibility rule?
Explanation
Problem 5
Check the divisibility rule of 855 for 6840.
Explanation
FAQs on Divisibility Rule of 855
1.What is the divisibility rule for 855?
2.How many numbers are there between 1 and 1000 that are divisible by 855?
3.Is 1710 divisible by 855?
4.What if the last digit is 0?
5. Does the divisibility rule of 855 apply to all integers?
Important Glossaries for Divisibility Rule of 855
- Divisibility rule: The set of rules used to find out whether a number is divisible by another number or not.
- Factors: Numbers that divide another number evenly without leaving a remainder. For example, factors of 855 are 3, 5, and 19.
- Multiples: The results we get after multiplying a number by an integer. For example, multiples of 855 include 855, 1710, etc.
- Sum of digits: A method used for checking divisibility by 3, where the sum of all digits in the number is calculated.
- Prime factorization: Breaking down a number into its basic prime factors. For example, the prime factors of 855 are 3, 5, and 19.
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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.
