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To test divisibility for 20, you need to use the tests for divisibility by 4 and 5.
The test for divisibility by 4 is that the last 2 digits of the number, given as a 2-digit number, are divisible by 4.
Example for 4:
We are testing the number 11042.
42/4 = 10.5 which is not a whole number. Therefore 11042 is not divisible by 4.
The test for divisibility by 5 is that the last digit of the number is either 5 or 0.
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Why does divisibility rule for 6 work?
By tautology. If it did not work, it would not be a divisibility rule!
Is 125000 divisible by 10?
Yes both the last digit in ten is 0 along with the last three digits in 125000 are even it is in the divisibility test
What is the divisibility rule of 64?
There are two ways of answering this.Check the number for divisibility by 2.Check the quotient for divisibility by 2.Check the quotient for divisibility by 2.Check the quotient for divisibility by 2.Check the quotient for divisibility by 2.Check the quotient for divisibility by 2.For large numbers, the check can be restricted to the number formed by the last six digits.
What is the divisibility rule for 34?
There is no easy rule for divisibility by 34.
What is the divisibility rule?
Able to Be Divided
