Number name for 123,080,603 is:
(a) One two three eighty thousand six hundred three
(b) One hundred twenty-three million eight thousand six hundred three
(c) One hundred twenty-three million eighty thousand six hundred three
(d) One twenty-three million eighty thousand six hundred

Hint: For solving this problem first we will see the value of one hundred, one thousand and one million. After that, we will write the number 123,080,603 $=123,000,000+80,000+600+3$ . Then, we will comfortably write the number name for the given number.

Complete step-by-step answer:
We have to write the number name for 123,080,603.
Now before we proceed we should know the value of one million, one thousand, and one hundred. These values are mentioned in the following points:
1. One hundred is equal to 100.
2. One thousand is equal to 1000.
3. One million is equal to 1,000,000.
Now, we come back to our question in which we have to write the number name for 123,080,603. We can write 123,080,603 $=123,000,000+80,000+600+3$ .
Now, we can write 3 as three, 600 as six hundred. And from the second point in the above three points, we can write 80,000 as eighty thousand and from the third point, we can write 123,000,000 as one hundred twenty-three million.
Thus, from the above discussion, we conclude that the number name for 123,080,603 will be one hundred twenty-three million eighty thousand six hundred three.
Hence, option (c) will be the correct option.

Note: Here, the student should first try to write the number in the form of 123,080,603 $=123,000,000+80,000+600+3$ . After that, we should very carefully write the number name for the given number without any mistake. Moreover, it is a very basic and fundamental problem and we should always try to solve such from the basics for better understanding.