The multiples of 13 are numbers that can be divided by 13 without leaving a remainder. The multiples of 13 are: 13, 26, 39, 52, 65, 78, 91, 104, 117, and so on. The multiples of 7 are numbers that can be divided by 7 without leaving a remainder. The multiples of 7 are: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, and so on.
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7 x 13 = 91. Therefore, 91 is a common multiple of 7 and 13, because both 7 and 13 are factors of the multiple, 91.There are infinitely many common multiples of 7 and 13: specifically, these consist of multiples of 91.
That's an infinite list.
Multiples of 13, like 13, 26 and 39.
The first 3 multiples of 13 are: 13, 26, and 39.
35 and 70 both have 7 and 5 as prime factors