The Least Common Multiple (LCM) for 2 7 is 14.
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15 and 7
LCM is the smallest positive integer that is a multiple of both 2 and 7. As both are prime numbers it is 2 x 7 =14
7 and 35
To find the LCM of a set of numbers, you first need to work out their prime factors: 2=2 4=2x2 7=7 14=2x7 The next step is to identify any common factors. Three numbers have a 2, so two of these can be discarded. Also, two numbers have a 7, so one of these can be discarded. This leaves us with 2, 2 and 7. To find the LCM we simply multiply these numbers together: 2x2x7 = 28 Thus the LCM of 2, 4, 7 and 14 is 28.
2, 7, and 17 are all prime numbers, so their LCM is their product: 2 x 7 x 17 = 238