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Divisibility Tests

Let's do one:

Does 8 go into 53,496,192? ( Is 53,496,192 divisible by 8? )
 

OK, we just need to check to see if 8 goes into 192.

Long division time!

192 / 8 ... subtract 16 from 192 = 32 ... subtract 32 from 32 = 0 ... 192 / 8 = 24 ... Yep!


So, 53,496,192 is divisible by 8.

 

How about this one?

Does 8 go into 68,011? ( Is 68,011 divisible by 8? )

 

Hey, this one is easy!  Does 8 go into 11?

No way. So 8 doesn't go into 68,011

 

YOUR TURN:

Is 689,531 divisible by 4?
 

Is 258,493,556 divisible by 4?
 

Is 73,232 divisible by 8?
 

Is 1,423,829,888 divisible by 8?