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If the sum of the digit is divisible by 3 the number is divisible by?
That means the number itself is divisible by three. the sum of the digits in 144, for example, is 9. 144 divided by 3 is 48. The sum of the digits in 21 is 3. 21 divided by 3 is 7.If the number is an even number and the sum of the digits is divisible by 3, the number is also divisible by 6. 144 is even and the sum of the digits is divisible by 3, so 144 is also divisible by 6. 144/6 = 24. And finally, if the sum is divisible by 9, the number itself is also divisible by 9. 27 is an example of this.
What is the sum of the first 2011 digits when 20 divided by 11 is written as a decimal?
9046. 20 ÷ 11 = 1.81... With the 81 repeating forever. So the sum of the first 2011 digits is the first digit plus the next 2010 digits which are "81" repeated 1005 times. Sum = 1 + (8 + 1) x 1005 = 9046
What is the sum of the first nine digits of pi?
4
What are the divisibility rules for 144?
The digital root (sum of digit) must be divisible by 9, and the number formed by the last 4 digits must be divisible by 16. The second requirement ensures that the number is divisible by 16.
What decimal tenths round to 6 to the nearest whole number the sum of the digits is divisible by 10 and their product is a perfect square what is the decimal?
5.5
