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Indices, SM-Bank 055

Using divisibility tests, find the smallest number greater than 200 that is divisible by 6.   (2 marks)

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\(\text{A number is divisible by }6\ \text{if it is divisible by both }2\ \text{and }3.\)

\(\text{A number is divisible by }2\ \text{if the last digit is  }2 , 4 , 6 , 8 , 0.\)

\(\therefore\ \text{The possible numbers are in the pattern }202 , 204 , 206 …\ \text{as they are all divisible by }2\)

\(\text{A number is divisible by }3\ \text{if the sum of the digits is divisible by }3.\)

\(2+0+2=4\ \Rightarrow\ \text{ not divisible by 3}\)

\(2+0+4=6\ \Rightarrow\ \text{ divisible by 3}\ \checkmark\)

\(\therefore\ 204\ \text{is the smallest number greater than }200\ \text{that is divisible by }6.\)

Filed Under: Indices Tagged With: num-title-ct-core, smc-4214-25-Divisibility

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