Question

find the LCM by division method of 210,240,420,660​

Answer 1

Answer:

Do it yourself (makes brain faster)

Step-by-step explanation:

Step 1: Write the given numbers in a horizontal line, separating them by commas.  

Step 2: Divide them by a suitable prime number, which exactly divides at least two of the given numbers.

Step 3: We put the quotient directly under the numbers in the next row. If the number is not divided exactly, we bring it down in the next row.

Step 4: We continue the process of step 2 and step 3 until all co-prime numbers are left in the last row.

Step 5: We multiply all the prime numbers by which we have divided and the co-prime numbers left in the last row. This product is the least common multiple of the given numbers.

Answer 2

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