Divisibility Rule of 620

The divisibility rule for 620 is a method by which we can determine if a number is divisible by 620 or not without using the division method. Check whether 1860 is divisible by 620 with the divisibility rule.

Step 1: Check if the number is divisible by both 10 and 62, since 620 = 10 × 62.

Step 2: To check divisibility by 10, the number must end in 0.

Step 3: For divisibility by 62, apply the divisibility rule of 2 and 31 (since 62 = 2 × 31):

- A number is divisible by 2 if it ends in an even number.

- For 31, sum up the digits in groups of two from right to left and alternate subtracting and adding these sums (or apply any other known rule for 31).

Step 4: If a number is divisible by both 10 and 62, it is divisible by 620.

Example: Check if 1860 is divisible by 620.

- The number ends in 0, so it is divisible by 10.

- 1860 is even, so it is divisible by 2.

- Check divisibility by 31: 18 - 60 = -42 (as 31 goes into 42, it is divisible by 31).

- Hence, 1860 is divisible by 620.

Learn the divisibility rule to help master division. Let’s learn a few tips and tricks for the divisibility rule of 620.

1. Know the factors of 620:

Memorize the factors of 620 (10 and 62) to quickly check divisibility.

2. Check smaller components:

Break down the divisibility into smaller components (like checking for 10 and 62) to simplify the process.

3. Repeat the process for large numbers:

For larger numbers, check divisibility by 10 first, then proceed to 62.

4. Use the division method to verify:

Use the division method as a way to verify and crosscheck results, helping to learn and confirm.
 

• Divisibility Rule: The set of rules used to find out whether a number is divisible by another number without performing division.

• Factors: The numbers that multiply together to yield another number. For example, 10 and 62 are factors of 620.

• Even Numbers: Numbers divisible by 2, often ending in 0, 2, 4, 6, or 8.

• Remainder: The amount left over when one number is divided by another.

• Integer: A whole number that can be positive, negative, or zero.