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What is the difference between the greatest and the smallest numbers which are divisible by 8 and are formed by using the digits 2, 4 and 6 each only once?

 Jan 4, 2020
 #1
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Six choices    246   264  426   462  624  642

The RED ones are divisible by 8    .... I think you can take it from here !   cheeky

 Jan 4, 2020
 #2
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If our number is divisible by 4, then the last two dights are divisible by 4. In this case, we only have 2 options for the last digit: 24 and 64.

Mathc1  Jan 4, 2020
edited by Mathc1  Jan 4, 2020

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