The sum, of the number of sides, is seven!
There is no seven-digit number that has a sum of 5. The smallest seven-digit number is 1,000,000, which already has a sum greater than 5.
x + 7
The number is 16.
7x4+8
The sum, of the number of sides, is seven!
There is no seven-digit number that has a sum of 5. The smallest seven-digit number is 1,000,000, which already has a sum greater than 5.
x + 7
If you add a single number - in this case minus seven - the "sum" is the number itself.
n + 37
The number is 16.
A prime number cannot be a multiple of seven. You might be looking for 59.
666
7x4+8
N = the number It's [ 7N + (N+8) ]
It is 63.
an octet is eight: the cardinal number that is the sum of seven and one.