Calculate the Least Common Multiple or LCM of 285, 356 and 390

The instructions to find the LCM of 285, 356 and 390 are the next:

1. Decompose all numbers into prime factors

2. Write all numbers as the product of its prime factors

3. Choose the common and uncommon prime factors with the greatest exponent

Common prime factors: None

Common prime factors with the greatest exponent: None

Uncommon prime factors: 3 , 5 , 19 , 2 , 89 , 13

Uncommon prime factors with the greatest exponent: 3¹, 5¹, 19¹, 2², 89¹, 13¹

4. Calculate the Least Common Multiple or LCM

Remember, to find the LCM of several numbers you must multiply the common and uncommon prime factors with the greatest exponent of those numbers.

LCM = 3¹. 5¹. 19¹. 2². 89¹. 13¹ = 1318980

Also calculates the:

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