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Multiples of 81

Multiples of 81 are the products obtained when 81 is multiplied by an integer. The first 5 multiples of 81 are 81, 162, 243, 324, 405. The sum of the first 5 multiples of 81 is 1215 and the average of the first 5 multiples of 81 is 243.

Multiples of 81: 81, 162, 243, 324, 405, 486, 567, 648, 729, 810 and so on.
Least Common Multiple (LCM) of 81 and 324: 324
Average of first 5 Multiples of 81: 243
First 2 Common Multiples of 81 and 26: 2106, 4212
Sum of first 5 Multiples of 81: 1215

1.	What Are the Multiples of 81?
2.	List of First 20 Multiples of 81
3.	FAQs on Multiples of 81

What Are the Multiples of 81?

The multiples of 81 are 81 × 1 = 81, 81 × 2 = 162, 81 × 3 = 243, 81 × 4 = 324, 81 × 5 = 405, . . . . . . . . . 81 × 12 = 972, 81 × 13 = 1053, 81 × 14 = 1134, 81 × 15 = 1215, . . . . . . . . . and so on.

First 20 Multiples of 81

The first 20 multiples of 81 are numbers that we obtain as the result when we multiply 81 from numbers 1 to 20.

List of First 20 Multiples of 81

81 × 1 = 81	81 × 11 = 891
81 × 2 = 162	81 × 12 = 972
81 × 3 = 243	81 × 13 = 1053
81 × 4 = 324	81 × 14 = 1134
81 × 5 = 405	81 × 15 = 1215
81 × 6 = 486	81 × 16 = 1296
81 × 7 = 567	81 × 17 = 1377
81 × 8 = 648	81 × 18 = 1458
81 × 9 = 729	81 × 19 = 1539
81 × 10 = 810	81 × 20 = 1620

☛ Also Check:

Multiples of 10: The first five multiples of 10 are 10, 20, 30, 40 and 50.
Multiples of 63: The first five multiples of 63 are 63, 126, 189, 252 and 315.
Multiples of 3: The first five multiples of 3 are 3, 6, 9, 12 and 15.
Multiples of 28: The first five multiples of 28 are 28, 56, 84, 112 and 140.
Multiples of 20: The first five multiples of 20 are 20, 40, 60, 80 and 100.

Multiples of 81 Solved Examples

Example 1: Which of the following numbers 81, 611, 940, 1215, 1374 and 1620 are the multiples of 81?

Solution:

Upon dividing 81, 611, 940, 1215, 1374 and 1620 by 81, the remainders are 0, 44, 49, 0, 78 and 0 respectively. Therefore, 81, 1215 and 1620 are the multiples of 81.
Example 2: Find the sum and average of the first 10 multiples of 81.

Solution:

The first 10 multiples of 81 are 81, 162, 243, 324, 405, 486, 567, 648, 729 and 810. Therefore,
- Sum of first 10 multiples: 81 + 162 + 243 + 324 + 405 + 486 + 567 + 648 + 729 + 810 = 4455
- Average of first 10 multiples: Sum of first 10 multiples/10 = (4455)/10 = 445.5
Example 3: Find if 1110 is a multiple of 81.

Solution:

Upon dividing 1110 by 81, the remainder 57, which is non-zero. Therefore, 1110 is not a multiple of 81.

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FAQs on Multiples of 81

How to Find the Multiples of 81?

The multiples of 81 are obtained by multiplying 81 with a natural number, therefore, the multiples of 81 are 81, 162, 243, 324, 405 . . . . . .

List the Multiples of 81 Less than 100.

The multiples of 81 less than 100 is 81.

Which Multiples of 69 are also Multiples of 81?

The Least Common Multiple (LCM) of 81 and 69 is 1863. Therefore, all multiples of the number 1863 are the multiples to both 81 and 69.

What is the Lowest Common Multiple of 81 and 42?

The Lowest Common Multiple (LCM) of 81 and 42 is 1134.

What are the first 5 Multiples of 81?

The first 5 multiples of 81 are 81, 162, 243, 324, 405.

List the Multiples of 81 Between 170 and 520.

Multiples of 81 between 170 and 520 are 243, 324, 405 and 486.

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