In the above number table, one number is missing. Can you identify the logic behind these numbers to figure out the missing number. Here’s challenge for you, can you do it within two minutes.

The missing number is 77
First Column: 2^2+4^2+5^2=45
Second Column: 1^2+3^2+6^2=46
Third Column: 2^2+8^2+3^2=77

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