What are the basic rules in finding the divisible number of a given number?

The Divisibility Rules

• Any integer (not a fraction) is divisible by 1.
• The last digit is even (0,2,4,6,8)
• The sum of the digits is divisible by 3.
• The last 2 digits are divisible by 4.
• The last digit is 0 or 5.
• Is even and is divisible by 3 (it passes both the 2 rule and 3 rule above)

How do we know if a number is divisible by 7?

The divisibility rule of 7 states that for a number to be divisible by 7, the last digit of the given number should be multiplied by 2 and then subtracted with the rest of the number leaving the last digit. If the difference is 0 or a multiple of 7, then it is divisible by 7.

What can 555 be divided by?

The factors of 555 are 1, 3, 5, 15, 37, 111, 185, 555. Therefore, 555 has 8 factors.

How do you know a number is divisible by 9?

A number is divisible by 9 if sum of its digits is divisible by 9. Illustration: For example n = 9432 Sum of digits = 9 + 4 + 3 + 2 = 18 Since sum is divisible by 9, answer is Yes.

How do you know if a number is divisible by 10?

A number is divisible by 10 if the last digit of the number is 0. The numbers 20, 40, 50, 170, and 990 are all divisible by 10 because their last digit is zero, 0. On the other hand, 21, 34, 127, and 468 are not divisible by 10 since they don’t end with zero.

How do you know if something is divisible by 9?

The sum of digits of all these numbers is itself a multiple of 9. For example, 18 is 1+8 = 9, which is divisible by 9, 27 is 2+7 = 9, which is divisible by 9, etc. So, as per the divisibility test of 9, if the sum of all the digits of a number is a multiple of 9, then the number is also divisible by 9.

What is the divisible rule of 9?

Divisibility Rule of 9 That is, if the sum of digits of the number is divisible by 9, then the number itself is divisible by 9. Example: Consider 78532, as the sum of its digits (7+8+5+3+2) is 25, which is not divisible by 9, hence 78532 is not divisible by 9.

What are numbers that are divisible by 8 9 and 10?

In this video lesson, we looked at divisibility by 8, 9, and 10. Numbers that are divisible by 8 are 8, 16, 24, etc. Numbers that are divisible by 9 are 9, 18, 27, etc. And numbers that are divisible by 10 are 10, 20, 30, and so on.

What is the divisibility test for 8?

A number is divisible by 8 if the numbers formed by the last three digits is divisible by 8. Consider the following numbers which are divisible by 8, using the test of divisibility by 8: 1792, 1824, 2000, 2880, 3320. In 1792 the last three digits are 792, which is divisible by 8.

How to check if a number is divisible by 11?

Rule: For any number, if the sum of digits at odd and even places are equal then the number will be divisible by 11. If the difference of sum of digits at odd and even places is divisible by 11 then also the number will be divisible by 11. Example: Check the divisibility of 1345675 by 11.

What are the divisibility rules for ABC DEF?

Divisibility Rules in Short Number Divisible by Rule abcdef 22 22 if ‘abcdef’ is divisible by 2 2 and 11 1 abcdef 23 23 If ‘abcde+ 7 7 ×f’ is divisible by 23 23 abcdef 24 24 if ‘abcdef’ is divisible by 3 3 and 8 8 abcdef 25 25 If ‘ef’ is divisible by 25 25