Advertisements
Advertisements
Question
Test the divisibility of the following number by 3:
872645
Advertisements
Solution
A number is divisible by 3 if the sum of its digits is divisible by 3.
872645 is not divisible by 3 because the sum of its digits, 8+7+2+6+4+5, is 32, which is not divisible by 3.
APPEARS IN
RELATED QUESTIONS
Test the divisibility of the following number by 4:
35056
Test the divisibility of the following number by 4:
810524
Test the divisibility of the following numbers by 5:
4965
Test the divisibility of the following numbers by 5:
438750
Test the divisibility of the following numbers by 8:
2138
Test the divisibility of the following number by 10:
5790
In the following number, replace * by the smallest number to make it divisible by 9:
6702*
Write (T) for true and (F) for false against the following statement:
If a number is divisible by 8, it must be divisible by 4.
Write (T) for true and (F) for false against the following statement:
If a number is divisible by 3 and 7, it must be divisible by 21.
Which of the following is a prime number?
