000
One possibility: IV+IV+IV = XII using Roman numerals
There is no valid mathematical solution to the question.
1+2+3 6; 1X2X3 6
How about: 1*2*3 = 6 and 1+2+3 = 6
15
The number 2, in base 4 arithmetic.
Because 51 is an odd number, it cannot be totalled by adding the same number twice.
000
Two Numbers consisting only of ones that when multiplied or added equal the same number are 11, and 1.1
1, 2 and 3
One, two, and three.
The product of two numbers is the proceeding result when two numbers are added together.
one, two, and three
1, 2, 3
One possibility: IV+IV+IV = XII using Roman numerals
Only true if both of the numbers are of the same polarity.