write divisibility test for 3 and give one example.
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The divisibility rule of 3 for large numbers states that if the sum of all digits of a large number is divisible by 3 or is a multiple of 3 then we can say that the large number is also divisible by 3.
For example a number 220077
the sum of all the digits = 2+2+0+0+7+7 = 18.
18 is a multiple of 3, that is 3 x 6 = 18
For example a number 220077
the sum of all the digits = 2+2+0+0+7+7 = 18.
18 is a multiple of 3, that is 3 x 6 = 18
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