find the LCM of 12,28,14 ( answer is 84 ) but don't know the method
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Required Answer:
L.C.M = (see attachment)
L.C.M. = 2 × 2 × 7 × 3 = 84
So, the LCM of 12, 28 and 14 is 84.
What is LCM?
LCM is known as Least Common Factor. It is known as the leasr factor for given numbers. A factor is one of the numbers that multiplies by a whole number to get that number.
How to find LCM?
Let us take the above example only.
Question: Find the LCM of 12,28,14.
Answer: Follow these steps:
1. First find the prime factors of all three together.
2. When we saw the prime factorisation, it was coming - 2 × 2 × 7 × 3 altogether.
3. Now multiply them and your LCM is here.
2 × 2 × 7 × 3 = 84.
This was a common example. There can be more examples like this.
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