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104 LearnersLast updated on October 15, 2025
Numbers up to 8-Digits
A number with up to 8 digits, where the first digit must be any number between 1 and 9, is known as an 8-digit number. The 8th place value of a number is called ‘Crore’ in the Indian number system and ‘Ten Million’ in the International place value system. We will learn more about the 8-digit number below.
What are 8-Digit Numbers?
Any number that has exactly eight digits is known as an 8-digit number. The numbers that start from 10,000,000 to 99,999,999 are the 8-digit numbers. For example, 50,123,568 and 35,098,765 are 8-digit numbers.
How to Write Numbers up to 8-Digits?
The 8-digit number can be written in two different systems, they are: International number system and Indian number system In the international number system, we put commas after every 3 digits, starting from the right.
For example, the smallest 8-digit number is written as 10,000,000. This number is called ten million because the first comma from the right marks the million place. In the Indian number system, we put the first comma after 3 digits from the right, and then after every 2 digits.
Example: The smallest 8-digit number is written as 1,00,00,000. This number is called 1 crore, because the first comma from the right indicates the lakh place.
Comparison of the Indian System and the International System
The charts given below show the difference between the numbers up to 8 digits according to the Indian place value chart and the International place value chart.
How to Decompose 8-Digit Numbers?
Any 8-digit number has place values that can go up to ten million in the International system or one crore in the Indian system. Here are the place value names from right to left in an 8-digit number.
Digit 1: Ones / Units
Digit 2: Tens
Digit 3: Hundreds
Digit 4: Thousands
Digit 5: Ten Thousands
Digit 6: Lakhs / Hundred Thousands
Digit 7: Ten Lakhs / Million
Digit 8: Crores / Ten Million
Let us take an example number: 54,68,26,840 and break it into its place values.
Digit 1: PV = 0 × 1 = 0
Digit 2: PV = 4 × 10 = 40
Digit 3: PV = 8 × 100 = 800
Digit 4: PV = 6 × 1000 = 6000
Digit 5: PV = 2 × 10000 = 20000
Digit 6: PV = 8 × 100000 = 800000
Digit 7: PV = 6 × 1000000 = 6000000
Digit 8: PV = 5 × 10000000 = 50000000
Here, PV stands for Place Value. Largest 8-Digit Number The biggest 8-digit number is 99,999,999. If we add one more number, we will get 100,000,000, which has 9 digits. Smallest 8-Digit Number The smallest 8-digit number is 10,000,000. If we subtract 1 from this number, we will get 9,999,999, which has only 7 digits.
Tips and Tricks for Numbers up to 8-Digit
8-digit numbers may look large, but they still follow a simple pattern. By understanding the number systems, place values, and easy tricks, you can read, write, and compare them quickly. These tips will help you work with large numbers without confusion.
- Instead of reading all the digits at once, separate them with commas according to the Indian or International system, which makes them easier to read.
- Remember the key milestones such as 1 million, 1 crore, etc.
- Knowing all these helps in quick conversions between systems.
- Count the digits to know the size of a number. For example, if the given number is 7 digits, it is less than 10 million; if it is 8 digits, the number is 10 million or more.
- Adding a zero to the number multiplies the number by 10. For example, 5,000,000 × 10 = 50,000,000, and now the number becomes an 8-digit number.
Common Mistakes and How to Avoid Them in Numbers up to 8-Digit
Students sometimes make mistakes when learning or writing numbers, especially when it is a big number like an 8-digit number. A small mistake in reading, writing, or placing commas can completely change the number. Given below are some common errors and how to avoid them.
Mistake 1
Misplacing commas in the number system
Students get confused between the Indian and the International number systems and misplace the commas in the number. For example, writing 1,00,00,000 in the International system is incorrect; it should be 10,000,000. Learn the patterns, as in the International number system, we place commas after every 3 digits, and in the Indian number system, we place commas in a 3-2-2 pattern.
Mistake 2
Confusing crores and millions
In the Indian system, large numbers are measured in lakhs and crores, while in the international system they are in millions and tens of millions. Students sometimes say ‘million’ when they mean ‘crore’ or vice versa. Remember that 1 crore is equal to 10 million.
Mistake 3
Counting digits incorrectly
Sometimes, students mistake a 7-digit number for an 8-digit number because of not counting it properly. Always count the digits without commas before naming the number.
Mistake 4
Ignoring the place value when reading numbers
Reading a large number without considering its place value leads to incorrect reading. Break the number according to the number system and read each group separately with its place value.
Mistake 5
Forgetting that zero changes the value
Adding extra or leaving out zeros can make a huge difference in value. Double-check the number of zeros, especially when writing in words or converting between systems.
Solved Examples of Numbers up to 8-Digit
Problem 1
Write the smallest 8-digit number in the Indian number system.
1,00,00,000
Explanation
In the Indian number system, we place commas after 3 digits from the right, and then every 2 digits. This gives 1,00,00,000, which is called 1 crore.
Problem 2
What is the place value of 7 in the number 74,56,328?
The place value is 70,00,000
Explanation
The first digit from the left in an 8-digit number is in the ten million place according to the international system. Here, 7 is in the ten million place, so its place value is 7 × 10,00,000 = 70,00,000.
Problem 3
Write 3,45,67,891 in the International number system
34,567,891
Explanation
In the Indian system, commas are placed in the 3-2-2 pattern. To convert that to the International system, we place commas after every 3 digits from the right. Therefore, it becomes 34,567,891.
Problem 4
Which is greater: 8,76,54,321 or 9,00,00,000?
9,00,00,000
Explanation
Both numbers are 8 digits long. We compare from the left, 9 crore is greater than 8 crore. So, 9,00,00,000 is larger.
Problem 5
How many 8-digit numbers are there in total?
90,000,000
Explanation
The smallest 8-digit number is 10,000,000 and the largest is 99,999,999. We can find the total numbers by: Number of 8-digit numbers = Largest - Smallest + 1 = 99,999,999 - 10,000,000 + 1 = 90,000,000
FAQs on Numbers up to 8-Digit
1.What are the smallest and largest 8-digit numbers?
2.How many 8-digit numbers are there in total?
3.Can an 8-digit number start with 0?
4.What is the place value of the first digit in an 8-digit number?
5.Can 8-digit numbers be negative?
Important Glossary of Numbers up to 8-Digit
- Digit: The single number from 0 to 9 used to form large numbers.
- Place Value: It is the value of a digit based on its position in a number.
- Smallest 8-digit number: The lowest number that has exactly 8 digits.
- Largest 8-digit number: The highest number that has exactly 8 digits.
- Unit / Ones: The place value position for a single unit or the rightmost digit in the number.
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Hiralee Lalitkumar Makwana
About the Author
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
Fun Fact
: She loves to read number jokes and games.
