The number five crore twenty three lakh seventy eight thousand four hundred one can be written, using commas, in the Indian System of Numeration as ____.
5,23,78,401
Step 1: Understand the groups in the Indian System.
From the right, we make groups like this:
Ones (3 digits), then Thousands (2 digits), then Lakhs (2 digits), then Crores (2 digits).
Step 2: Split the words into parts.
Step 3: Put each part in a place-value table.
| Crore | Lakh | Thousand | Hundreds | Tens | Ones |
|---|---|---|---|---|---|
| \(5\) | \(23\) | \(78\) | \(4\) | \(0\) | \(1\) |
Step 4: Write the number and insert commas.
Start with the last three digits: \(401\).
Put the thousands just before it: \(78\) → \(78,401\).
Put the lakhs before that: \(23\) → \(23,78,401\).
Add the crores in front: \(5\) → \(5,23,78,401\).
Answer: 5,23,78,401.