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Hello!
I'm assuming that the values you gave are 18, 12 and 14, but there's a period before the 14, I think that's a mistake but if it's not please let me know, anyhow, the least common multiple of 12, 14 and 18 is 252.

Good luck!
frika

First, factor all these numbers:

  • 18=2·3·3;
  • 12=2·2·3;
  • 14=2·7.

Then

  • find all common factors for three numbers - this is factor 2 and write it as first factor of LCM(18,12,14);
  • find all common factors for two numbers - this is factor 3 and write it as second factor of LCM(18,12,14);
  • write all remaining factors.

At last, the least common multiple LCM(18,12,14)=2·3·3·2·7=252.

Answer: 252.

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