2 : The number ends with a 2, 4, 6, 8, or zero. (The number is 'even'.)
3 : The sum of the digits in the number is divisible by 3 .
5 : The number ends with a zero or a 5 .
6 : The number passes the tests above for both 2 and 3 .
10 : The number ends with a zero.
Do the division, if there is no remainder, it is divisible. Seriously, many of the "divisibility rules" that have been discovered become more complicated than doing the actual division. For practical purposes, just learn the divisibility rules for a few simple cases (divisibility rules by 2, 4, 8, 5, 10, 3, 9, 7, 11, and 13), and for all other cases, just do the division.
26
If the rules for 2 and 3 work, the number is divisibale by 5.
Yes, you can tell using the divisibility rules. The answers are yes for all but 5 and 10.
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
3 and 9. And they divide into 123456789 whether or not you use divisibility rules!
Do the division, if there is no remainder, it is divisible. Seriously, many of the "divisibility rules" that have been discovered become more complicated than doing the actual division. For practical purposes, just learn the divisibility rules for a few simple cases (divisibility rules by 2, 4, 8, 5, 10, 3, 9, 7, 11, and 13), and for all other cases, just do the division.
26
3+7=10
If the rules for 2 and 3 work, the number is divisibale by 5.
No.
Yes, you can tell using the divisibility rules. The answers are yes for all but 5 and 10.
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
Yes.
It is divisible by 3 and 9 but not the others.
If the number is even, it is divisible by 2. If the sum of the digits is a multiple of 3, the whole number is divisible by 3.
It is divisible by any of its factors which are: 1, 2, 3, 6, 7, 14, 21 and 42