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add the numbers up, then if it comes out to a multiple of 3, it is divisible
Divide the number by 3, and if the answer is not a whole number, it is not divisible. For instance, 1047 is divisible by 3. while 1045 would be impossible since it is a difference of only 2 from 1047.
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Is 247 divisible by 2 3 5 9 or 10?
Not two ( the number is not even )Not five or ten ( dosent end with zero or five )Not nine ( Trick: 2+4+7=15 ) Not divisible by nineYes Three: 15 is divisible by threeNote: the trick only works with three and nine
Is 524 divisibility by 3?
no.. heres a trick: if you add together the numbers (5+2+4) and that answer equals a number that is divisible by 3 then the number is divisible by three 5+2+4=11 11 is not divisible by 3 therefore, 524 is not divisible by 3
Is seventy four in the four tables?
No. The number 74 is not divisible by 4. One trick is to add the digits of the number and see if it is divisible by four. this trick applies only to the number 4 7+4= 11 11 is not divisible by 4.
How many three digit numbers are divisible by 4?
Trick question all numbers are divisible by four ,but only 175 result in whole numbered answers
What is a trick to see if a number is divisble by 4?
It is enough to check whether the last two digits are divisible by 2.
