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What are signs that a number is divisible by 3?
If all the digits in a number add up to a number divisible by three, the number itself is divisible by three.For example the number 711: 7 + 1 + 1 = 9. Nine is divisible by three, therefore 711 is divisible by three.
What is the converse inverse and contrapositive If every digit of a number is divisible by 3 then the number is divisible by 3?
Converse:If a number is divisible by 3, then every number of a digit is divisible by three. Inverse: If every digit of a number is not divisible by 3 then the number is not divisible by 3? Contrapositive:If a number is not divisible by 3, then every number of a digit is not divisible by three.
If the ............. of the digits for a whole number is divisible by three then the whole number is also divisible by three?
You would fill in the blank with the word sum, which means that you add each of the digits of the number. If that sum is divisible by three then the number is divisible by 3.
What is the greatest three digit number that is divisible by 7?
The greatest three digit number that is divisible by 7 is 994.
What is a quick way to determine if 3 is a factor of a number?
If the sum of the digits of a given number is divisible by three, the number is divisible by three.
How would you reconise a multiple of three?
if the number is a 2 or more diget number, you add up all of the numbers in the number and when you have the sum, if the sum is divisible by 3 , the whole number is divisible by three EX. 123=6, 6 is divisible by 3 so 123 is divisible by three 447=15 is divisible by 3 so 447 is divisible by 3 989=26 is *NOT* divisible by 3 so 989 is not divisible by three this truly does work for every single number
A number is divisible by 8 if?
If the number formed by the last three digits is divisible by 8. Alternatively, if the number is divisible by 2, the quotient is divisible by 2 and that quotient is divisible by 2.
Is 460 divisible by 3?
No. To check if a number is divisible by three, add up all of the digits (4+6+0) and see if that number is divisible by three.
Is 10000 divisible by three?
No. If a number is divisible by three, the sum of its digits will be divisible by three. Obviously, the sum of the digits of 10000 is 1, and 1 is not divisible by 3, so 10000 is not divisible by 3.
A number is divisible by 8 the number formed by its last?
If the last three digits of a number are divisible by 8, the whole number is divisible by 8.
Is 532 divisible by 3?
No. A good test is to add up the digits of the number (5+3+2) and if that's divisible by three, then the original number is divisible by three.
Is a number divisible by three and twenty also divisible by sixty?
Yes.
