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To double 234, you simply multiply it by 2. Therefore, double of 234 is 468. Multiplying a number by 2 is the same as adding the number to itself, so 234 + 234 = 468.
Using the tests for divisibility:Divisible by 3:Add the digits and if the sum is divisible by 3, so is the original number: 2 + 3 + 4 = 9 which is divisible by 3, so 234 is divisible by 3Divisible by 6:Number is divisible by 2 and 3: Divisible by 2:If the number is even (last digit divisible by 2), then the whole number is divisible by 2. 234 is even so 234 is divisible by 2.Divisible by 3:Already shown above to be divisible by 3. 234 is divisible by both 2 & 3 so 234 is divisible by 6Divisible by 9:Add the digits and if the sum is divisible by 9, so is the original number: 2 + 3 + 4 = 9 which is divisible by 9, so 234 is divisible by 9Thus 234 is divisible by all 3, 6 & 9.
Oh, dude, the smallest number you can make from 7, 6, and 3 is 367. Yeah, you heard me right. Just slap those digits together like a lazy Sunday afternoon and there you have it. 367, the tiniest number in town.
The 'sum' is what is formed when you add things together... 234 + 789 = 1023
if u were to use all the numbers as one 4 digit number, the smallest number would be 4579. if u were to add or subtract them, the smallest number would be -17