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three numbers divisible by 10

 Mar 22, 2016
 #1
avatar+23 
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Numbers that are divisible by 10 need to be even and divisible by 5, because the prime factors of 10 are 5 and 2. Basically, this means that for a number to be divisible by 10, the last digit must be a 0.

 Mar 22, 2016
 #2
avatar+154 
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10, 20, 30

 Mar 22, 2016

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