345*347

To calculate \( 345 \times 347 \), you can use the difference of squares method:

\[ 345 \times 347 = (346 - 1)(346 + 1) = 346^2 - 1^2 \]

First, calculate \( 346^2 \):

\[ 346^2 = 119716 \]

Then, subtract \( 1^2 \) (which is 1):

\[ 119716 - 1 = 119715 \]

So, \( 345 \times 347 = 119715 \).