Multiples of 105: First 20 Multiples

Quick Answer

The first 20 multiples of 105 are: 105, 210, 315, 420, 525, 630, 735, 840, 945, 1050, 1155, 1260, 1365, 1470, 1575, 1680, 1785, 1890, 1995, 2100.

Sum: 22050.  Average: 1102.5.

Multiples Calculator


  Ex.: 3, 7, 12, 100, etc. — shows first 20 multiples.
First 20 multiples of 105
105, 210, 315, 420, 525, 630, 735, 840, 945, 1050, 1155, 1260, 1365, 1470, 1575, 1680, 1785, 1890, 1995, 2100

Use the calculator above to find the first 20 multiples of any positive integer up to 10,000. A multiple of n is any number obtained by multiplying n by a natural number: n × 1, n × 2, n × 3, ... Beyond the multiples list, this tool shows the sum, average, full multiplication table, and links to the divisor pages of each multiple.

First Multiples of 105

First 5 Multiples of 105

The first 5 multiples of 105 are: 105, 210, 315, 420, 525.

First 10 Multiples of 105

The first 10 multiples of 105 are: 105, 210, 315, 420, 525, 630, 735, 840, 945, 1050.

First 20 Multiples of 105

The first 20 multiples of 105 are: 105, 210, 315, 420, 525, 630, 735, 840, 945, 1050, 1155, 1260, 1365, 1470, 1575, 1680, 1785, 1890, 1995, 2100.

Sum: 22050.  Average: 1102.5.

Multiplication Table for 105

k105 × k
1105 × 1 = 105
2105 × 2 = 210
3105 × 3 = 315
4105 × 4 = 420
5105 × 5 = 525
6105 × 6 = 630
7105 × 7 = 735
8105 × 8 = 840
9105 × 9 = 945
10105 × 10 = 1050
11105 × 11 = 1155
12105 × 12 = 1260
13105 × 13 = 1365
14105 × 14 = 1470
15105 × 15 = 1575
16105 × 16 = 1680
17105 × 17 = 1785
18105 × 18 = 1890
19105 × 19 = 1995
20105 × 20 = 2100

See Divisors of Each Multiple

Since each multiple of 105 has 105 as one of its divisors, here are the divisor pages for the first 8 multiples:

Step-by-Step: How to List the Multiples of 105

A multiple of n is the result of multiplying n by any natural number (1, 2, 3, ...). To list the first k multiples, just multiply 105 by each integer from 1 to k:

  1. 105 × 1 = 105
  2. 105 × 2 = 210
  3. 105 × 3 = 315
  4. …continue up to 105 × 20 = 2100.
  5. Sum of these 20 multiples: 105 × (1+2+…+20) = 105 × 210 = 22050.

Shortcut: the sum of the first 20 multiples of 105 always equals 210n, since 1+2+…+20 = 210.

Facts About Multiples

  • Any number is a multiple of itself (n × 1 = n).
  • Any number is a multiple of 1 (1 × n = n).
  • Zero is a multiple of any number (0 × n = 0).
  • The set of multiples of a number is infinite — every natural-number multiplier produces another multiple.
  • If two numbers a and b are multiplied, the product a × b is a common multiple of both (but not necessarily the least common multiple — LCM).

The set of multiples of n can be represented as Mn = {0, 1·n, 2·n, 3·n, …}. For example: M105 = {0, 105, 210, 315, 420, …}.

Nearby Examples

nfirst 5 multiplessum (20)
100100, 200, 300, 400, 50021000
120120, 240, 360, 480, 60025200
7272, 144, 216, 288, 36015120
6060, 120, 180, 240, 30012600
4848, 96, 144, 192, 24010080
3636, 72, 108, 144, 1807560
2424, 48, 72, 96, 1205040
1818, 36, 54, 72, 903780

Multiples Table

  • 1: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
  • 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40
  • 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60
  • 4: 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80
  • 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100
  • 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108, 114, 120
  • 7: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105, 112, 119, 126, 133, 140
  • 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160
  • 9: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135, 144, 153, 162, 171, 180
  • 10: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200
  • 11: 11, 22, 33, 44, 55, 66, 77, 88, 99, 110, 121, 132, 143, 154, 165, 176, 187, 198, 209, 220
  • 12: 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168, 180, 192, 204, 216, 228, 240
  • 13: 13, 26, 39, 52, 65, 78, 91, 104, 117, 130, 143, 156, 169, 182, 195, 208, 221, 234, 247, 260
  • 14: 14, 28, 42, 56, 70, 84, 98, 112, 126, 140, 154, 168, 182, 196, 210, 224, 238, 252, 266, 280
  • 15: 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 255, 270, 285, 300

Related Operations for 105

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