What is the successor of 9999?

The successor of a number is the number that comes immediately after it. It is obtained by adding 1 to the given number.

Calculation:
Successor of 9999 = 9999 + 1 = 10000

Explanation:

• The concept of successor is part of basic number systems in mathematics.
• It represents the next natural number in sequence.

Key Point:

• Every number has a unique successor obtained by adding 1.

Conclusion:
The successor of 9999 is 10000.