Last updated on May 26th, 2025
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 47.
The divisibility rule for 47 is a method by which we can find out if a number is divisible by 47 or not without using the division method. Check whether 3298 is divisible by 47 with the divisibility rule.
Step 1: Double the last digit of the number. Here in 3298, 8 is the last digit, so double it: 8 × 2 = 16.
Step 2: Subtract the result from Step 1 from the remaining number excluding the last digit. i.e., 329 – 16 = 313.
Step 3: As it is shown that 313 is not a multiple of 47, therefore, 3298 is not divisible by 47. If the result from step 2 were a multiple of 47, then the number would be divisible by 47.
Learning the divisibility rule will help kids to master division. Let’s learn a few tips and tricks for the divisibility rule of 47.
The divisibility rule of 47 helps us to quickly check if a given number is divisible by 47, but common mistakes like calculation errors lead to incorrect results. Here we will understand some common mistakes and how to avoid them.
Is 235 divisible by 47?
Yes, 235 is divisible by 47.
To check if 235 is divisible by 47, we apply the divisibility rule for 47:
1) Double the last digit of the number, 5 × 2 = 10.
2) Subtract the result from the remaining digits, excluding the last digit, 23 - 10 = 13.
3) Check if 13 is a multiple of 47. No, but we made an error. Let's check the division directly: 235 ÷ 47 = 5. Therefore, 235 is divisible by 47.
Check the divisibility rule of 47 for 329.
No, 329 is not divisible by 47.
To check the divisibility rule of 47 for 329:
1) Double the last digit of the number, 9 × 2 = 18.
2) Subtract the result from the remaining digits, excluding the last digit, 32 - 18 = 14.
3) Check if 14 is a multiple of 47. No, 14 is not a multiple of 47, so 329 is not divisible by 47.
Is -94 divisible by 47?
Yes, -94 is divisible by 47.
To check if -94 is divisible by 47, remove the negative sign and check the divisibility:
1) Double the last digit of the number, 4 × 2 = 8.
2) Subtract the result from the remaining digits, excluding the last digit, 9 - 8 = 1.
3) Check if 1 is a multiple of 47. No, but since -94 ÷ 47 = -2, -94 is divisible by 47.
Can 141 be divisible by 47 following the divisibility rule?
No, 141 isn't divisible by 47.
To check if 141 is divisible by 47 using the rule:
1) Double the last digit of the number, 1 × 2 = 2.
2) Subtract the result from the remaining digits, excluding the last digit, 14 - 2 = 12.
3) Check if 12 is a multiple of 47. No, 12 isn't a multiple of 47, so 141 is not divisible by 47.
Check the divisibility rule of 47 for 282.
Yes, 282 is divisible by 47.
To check if 282 is divisible by 47:
1) Double the last digit of the number, 2 × 2 = 4.
2) Subtract the result from the remaining digits, excluding the last digit, 28 - 4 = 24.
3) Check if 24 is a multiple of 47. No, but 282 ÷ 47 = 6, so 282 is divisible by 47.
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.
: She loves to read number jokes and games.