It is 150
147 has factors other than 1 and itself, so it is not a prime number. For example, 147 is divisible by 3. (You can quickly check this by adding up the digits of 147: 1 + 4 + 7 = 12. If the sum of the digits is divisible by 3, so is the number.) Therefore, 147 is a composite number.
The sum of 3 plus 4 is 7.
147 / 3 = 49 49 will be the center number, just add and subtract 2 to/from 49 and you get 47+ 49 + 51 = 147
147 plus 147 plus 281 plus 281 equals 856. To break it down, 147 plus 147 equals 294, and 281 plus 281 equals 562. Adding those two results together, 294 plus 562 equals 856.
When the sum of a number plus 3 is squared, it is 11 more than the sum of the number plus 2 when squared.
The sum is 1511.
3 + 7 is an ADDITION sum
6
6
-3
3
3