13 = 131
45 = 32 . 51
65 = 51 . 131
The LCM will be the product of multiplying the highest power in each prime factor which are :
32 . 51 . 131 = 9 . 5 . 13 = 585
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No, 13 is not a factor of 45.
They are: 13 and 390 respectively
5 5 x 9 = 45; 5 x 13 = 65 The greatest common factor of 65 and 45 is 5.
117Multiples of 9 are 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108 ,117Multiples of 13 are 13, 26, 39, 52, 65, 78, 91, 104, 117117 is the LCM of 9 and 13The LCM of 9 and 13 is 117.
The LCM of 5 and 13 is 65. Both numbers happen to be prime (although one of them being so would have been enough), so their LCM will be their product. 5 x 13 = 65.