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There is no rule for 7 :P

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โˆ™ 2012-11-09 18:22:05
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Q: What is divisibility rule of 7?
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Related questions

What is the divisibility rule for 14?

The number must be divisible by 2 and by 7.


What divisibility rules were combined to make the divisibility rule of 36?

The divisibility rules of 4 and 9 are combined to make the divisibility rule of 36.


What is the divisibility rule for 34?

There is no easy rule for divisibility by 34.


How does the divisibility rule for 4 and 8 work?

why does the divisibility rule work for 4


What is the prime factorization of 98 using the divisibility rule?

2 x 7 x 7 = 98


What is the divisibility rule for 35?

If a number is divisible by 5 and 7, it's divisible by 35.


What is the rule of divisibility for 7?

Double the last digit. Subtract it from the rest. If the result is divisible by 7, the original number is divisible by 7.


Why does divisibility rule for 6 work?

By tautology. If it did not work, it would not be a divisibility rule!


Is there a divisibility rule for 24?

there is a divisibility for 24 the rule is you can divide 24 as 6 and 4 i think


What are the divisablity rules?

the divisibility rule for 2 is: The number is even;the last digit ends with a 2,4,6,8,10, etc.The divisibility rule fir 3 is: The sum of the number is divisible by 3The divisibility rule for 4 is: The last two digits are divisible by 4The divisibility rule for 5 is: The number ends with a 5 or 0The divisibility rule for 6 is: The sum CAN be divisible by 2 and or 3The divisibility rule for 9 is: The sum of the number is divisible by 9The divisibility rule for 10 is : The number ends with a 0


What is divisibility rule?

What is the divisblity rule by 8


What is the divisibility rule for 36?

123456789


What is the divisibility rule for 42?

The divisibility rule for 42 isdivisibility by 2, ANDdivisibility by 3, ANDdivisibility by 7.Divisibility by 2 requires the number to be even. That means it must end in 0, 2, 4, 6 or 8.Divisibility by 3 requires that the digital root of the number is divisible by 3. That is, the sum of the digits is divisible by 3. If the first sum is large, you can calculate the digital root of the digital root (and again, if necessary) and check that for divisibility by 3.The divisibility rule for 7 is more difficult.Take the last digit (units).From the number formed by the remaining digit, subtract twice the last digit.If the answer is divisible by 7 (including zero or negative numbers), then the original number is divisible by 7.For large numbers, repeat the process to bring the number down to a manageable size.


Why does divisibility rule for 2?

The divisibility rule for 2 works because the base of our number system, 10, is divisible by 2.


What is the divisibility rule for 21?

For any practical purpose, it is easier to simply divide, instead of looking for fancy divisibility rules. However, you can apply the divisibility rules for 3 and for 7. This works because (a) their product is 21, and (b) these numbers are relatively prime.


What is the 1st of rule divisibility?

Judging by some of the questions asked on this site, the first rule is that divisibility is a concept that applies only to whole numbers.


What is the divisibility rule for 2 squared 1?

2 squared 1 = 4 so the divisibility rule is that it is divisible by 1, 2 and 4.


How can you use a divisibility rule to determine if117 is prime or composite?

By using the divisibility rule for 3, we find that 117 is divisible by 3. That makes it composite.


What is a divisiblity rule?

it is a rule that is followed when wanting to see if a number can go into another number. ex: the divisibility rule for 3 is if the sum of the numbers is divisible by three then the whole number is divisible by 3. if the problem is 75, 3 can go into it because the sum of the numbers equals 12, look 7+5 = 12 . you can look up other divisibility rules on here but if found please answer my question.... what is the divisibility rule for 7? Hope that helped, me888100 p.s. this was written by a 13 yr old


What is the divisibility rule?

Able to Be Divided


What is the Divisibility rule of 5?

2.50


What is the divisibility rule for 13?

There is no divisibility rule for 13 because it is a prime number. If you are thinking: why is there a divsibility rule for 2 and 3 then. Well, i don't know so go look it up on google.


Which of the Divisibility Rules go on 741?

The rule for 1 and the rule for 3.


What is divisibility rule of 17?

The special divisibility rule of 17 is "Take the difference of the rest of the digits and the last digit times 5." For instance: 17 1 - 7 * 5 = 1 - 35 = -34 which is divisible by 17.


What is divisibility rule for two?

the number is even.