206 LearnersLast updated on May 26th, 2025
Divisibility Rule of 705
The divisibility rule is a method to determine whether a number is divisible by another number without performing actual division. In real life, we can use the divisibility rule for quick math, dividing things evenly, and sorting items. In this topic, we will learn about the divisibility rule of 705.
What is the Divisibility Rule of 705?
The divisibility rule for 705 is a method to check if a number is divisible by 705 without performing division. Let's check whether 352,755 is divisible by 705 using the divisibility rule.
Step 1: Check divisibility by 5. A number is divisible by 5 if it ends in 0 or 5. Here, 352,755 ends in 5, so it is divisible by 5.
Step 2: Check divisibility by 3. Add all digits of the number: 3+5+2+7+5+5=27. Since 27 is divisible by 3, 352,755 is divisible by 3.
Step 3: Check divisibility by 47. Divide the number by 47 and see if the remainder is 0. Here, 352,755 ÷ 47 = 7,505 with no remainder, confirming divisibility by 47.
Since 352,755 is divisible by 5, 3, and 47, it is divisible by 705 (5×3×47).
Tips and Tricks for Divisibility Rule of 705
Learning divisibility rules will help kids master division. Let’s learn a few tips and tricks for the divisibility rule of 705.
Know the prime factors:
Memorize the prime factors of 705 (5, 3, 47) to quickly check divisibility.
Use the division method for confirmation:
After using divisibility rules, you can use division to verify your results.
Repeat the process for large numbers:
If dealing with large numbers, break down the process by checking divisibility by 5, 3, and 47 separately.
Simplify calculations:
When checking for divisibility by 3, always simplify your sum of digits by comparing it with known multiples of 3.
Practice regularly:
Regular practice will help avoid confusion and make the process second nature.
Common Mistakes and How to Avoid Them in Divisibility Rule of 705
The divisibility rule of 705 helps us quickly check if a number is divisible by 705, but common mistakes like calculation errors can lead to incorrect results. Here are some common mistakes and how to avoid them:
Mistake 1
Not checking all prime factors.
Always check divisibility by 5, 3, and 47.
Mistake 2
Forgetting to add all digits for 3.
Ensure you add all digits of the number to check for divisibility by 3.
Mistake 3
Not verifying with actual division.
Use the division method for final confirmation.
Mistake 4
Misinterpreting remainders.
When checking by 47, ensure the remainder is 0 for divisibility.
Mistake 5
Skipping steps.
Follow each step methodically to avoid errors.
Divisibility Rule of 705 Examples
Problem 1
Is 4230 divisible by 705?
Yes, 4230 is divisible by 705.
Explanation
To determine if 4230 is divisible by 705, check if dividing 4230 by 705 results in a whole number.
1) Perform the division 4230 ÷ 705, which equals exactly 6.
2) Since the result is a whole number, 4230 is divisible by 705.
Problem 2
Check if 3525 is divisible by 705.
No, 3525 is not divisible by 705.
Explanation
To check the divisibility of 3525 by 705, perform the division.
1) Divide 3525 by 705, which results in approximately 5.0.
2) Since the division does not yield a whole number, 3525 is not divisible by 705.
Problem 3
Is -2820 divisible by 705?
No, -2820 is not divisible by 705.
Explanation
To determine the divisibility of -2820 by 705, consider the positive equivalent.
1) Remove the negative sign and divide 2820 by 705.
2) The result is approximately 4.0, which is not a whole number.
3) Therefore, -2820 is not divisible by 705.
Problem 4
Can 7050 be divisible by 705?
Yes, 7050 is divisible by 705.
Explanation
To verify if 7050 is divisible by 705, perform a simple division.
1) Divide 7050 by 705, which equals exactly 10.
2) Since the result is a whole number, 7050 is divisible by 705.
Problem 5
Check the divisibility of 1410 by 705.
Yes, 1410 is divisible by 705.
Explanation
To check if 1410 is divisible by 705, perform the division.
1) Divide 1410 by 705, which results in exactly 2.
2) Since the division yields a whole number, 1410 is divisible by 705.
FAQs on Divisibility Rule of 705
1.What is the divisibility rule for 705?
2.How many numbers are there between 1 and 1000 that are divisible by 705?
3.Is 1410 divisible by 705?
4.What if I get a remainder when checking for 47?
5.Does the divisibility rule of 705 apply to negative numbers?
6.How can children in Saudi Arabia use numbers in everyday life to understand Divisibility Rule of 705?
7.What are some fun ways kids in Saudi Arabia can practice Divisibility Rule of 705 with numbers?
8.What role do numbers and Divisibility Rule of 705 play in helping children in Saudi Arabia develop problem-solving skills?
9.How can families in Saudi Arabia create number-rich environments to improve Divisibility Rule of 705 skills?
Important Glossaries for Divisibility Rule of 705
- Divisibility Rule: A method to determine if a number can be divided by another number without a remainder.
- Prime Factors: The prime numbers that multiply together to yield the original number, such as 5, 3, and 47 for 705.
- Remainder: The amount left after division when a number does not divide evenly.
- Integer: A whole number that can be positive, negative, or zero.
- Verification: The process of checking calculations to ensure accuracy, often using division to confirm results.
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About BrightChamps in Saudi Arabia
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.
