Multiples of 90: First 20 Multiples

Quick Answer

The first 20 multiples of 90 are: 90, 180, 270, 360, 450, 540, 630, 720, 810, 900, 990, 1080, 1170, 1260, 1350, 1440, 1530, 1620, 1710, 1800.

Sum: 18900.  Average: 945.

Multiples Calculator


  Ex.: 3, 7, 12, 100, etc. — shows first 20 multiples.
First 20 multiples of 90
90, 180, 270, 360, 450, 540, 630, 720, 810, 900, 990, 1080, 1170, 1260, 1350, 1440, 1530, 1620, 1710, 1800

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 90

First 5 Multiples of 90

The first 5 multiples of 90 are: 90, 180, 270, 360, 450.

First 10 Multiples of 90

The first 10 multiples of 90 are: 90, 180, 270, 360, 450, 540, 630, 720, 810, 900.

First 20 Multiples of 90

The first 20 multiples of 90 are: 90, 180, 270, 360, 450, 540, 630, 720, 810, 900, 990, 1080, 1170, 1260, 1350, 1440, 1530, 1620, 1710, 1800.

Sum: 18900.  Average: 945.

Multiplication Table for 90

k90 × k
190 × 1 = 90
290 × 2 = 180
390 × 3 = 270
490 × 4 = 360
590 × 5 = 450
690 × 6 = 540
790 × 7 = 630
890 × 8 = 720
990 × 9 = 810
1090 × 10 = 900
1190 × 11 = 990
1290 × 12 = 1080
1390 × 13 = 1170
1490 × 14 = 1260
1590 × 15 = 1350
1690 × 16 = 1440
1790 × 17 = 1530
1890 × 18 = 1620
1990 × 19 = 1710
2090 × 20 = 1800

See Divisors of Each Multiple

Since each multiple of 90 has 90 as one of its divisors, here are the divisor pages for the first 8 multiples:

Step-by-Step: How to List the Multiples of 90

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 90 by each integer from 1 to k:

  1. 90 × 1 = 90
  2. 90 × 2 = 180
  3. 90 × 3 = 270
  4. …continue up to 90 × 20 = 1800.
  5. Sum of these 20 multiples: 90 × (1+2+…+20) = 90 × 210 = 18900.

Shortcut: the sum of the first 20 multiples of 90 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: M90 = {0, 90, 180, 270, 360, …}.

Nearby Examples

nfirst 5 multiplessum (20)
100100, 200, 300, 400, 50021000
7272, 144, 216, 288, 36015120
120120, 240, 360, 480, 60025200
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

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