So lets say you have the Numbers (2677; 6191 and 1091), how would you go about the check that 2677 and 1091 are Prime ?
The conditions are:
- You dont have a calculator
- You just have a Pen
Is there a clever way to do it except looking at the Last Digit ?
Thanks for the Help !
Also small fun fact, if you use the Google Calculator and divide by Zero, it says "Infinity". Meaning in Google´s World 2:0 = 173279384:0. Same thing as you can see.
The conditions are:
- You dont have a calculator
- You just have a Pen
Is there a clever way to do it except looking at the Last Digit ?
Thanks for the Help !
Also small fun fact, if you use the Google Calculator and divide by Zero, it says "Infinity". Meaning in Google´s World 2:0 = 173279384:0. Same thing as you can see.