The first ten positive integer multiples of 80 are:
1 x 80 = 80
2 x 80 = 160
3 x 80 = 240
4 x 80 = 320
5 x 80 = 400
6 x 80 = 480
7 x 80 = 560
8 x 80 = 640
9 x 80 = 720
10 x 80 = 800
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The multiples of 80 are the numbers that result when 80 is multiplied by the positive whole numbers (positive integers). So this starts at 1 and continues 2,3,4 and so forth. As numbers are infinite (they continue on without end), so too are the multiples of 80 (or of any number). As an example, the first three multiples of 80 are:
80 (80 * 1)
160 (80 * 2)
240 (80 * 3)
Each successive multiple of 80 is 80 more than the last one.
The first four multiples of 20 are: 20 40 60 80
The common multiples of 10 and 16 are 80, 160, 240 and so on.
Oh, what a happy little question! Let's take a moment to appreciate these numbers. Between 61 and 107, the multiples of 4 are 64, 68, 72, 76, 80, 84, 88, 92, 96, 100, and 104. The multiples of 8 are 64, 72, 80, 88, 96, and the multiples of 16 are 64 and 80. Just like painting a beautiful landscape, finding these multiples can be a calming and rewarding experience.
80 and 100
Just 84.