#divisible by 3

[woman-respecter]

51 feels prime but it isnt i dont like that

[notentirely]

2:30 03/27/16

him: it was right about now we were having shots. me: nah, it was earlier! him: no, we got married at 5 o'clock. me: ohhhh, right, we were having shots at 2:30. him: yes. me: right.

[coolmathsthings]

I always struggle to know what numbers are and are not divisible by 3 - is 41 divisible by 3 or is it 42? Is 57 prime? Well now we can be sure with just some primary school addition - even for the big numbers!

[magenta4ever]

Is it divisible by 3??

Interesting factoid, if you take a number and add them together and get a number that is a multiple of three it in return is divisible by three: Example; 25230, add the numbers, you get 12, which makes it divisible by 3.