What is the LCM of 7 and 63?

What's the Least Common Multiple (LCM) of 7 and 63?

Answer

LCM of 7 and 63 is

63

First common multiples: 63, 126, 189, …

As a common denominator: multiply the top and bottom of x/7 by 9.

7 divides 63 (63 ÷ 7 = 9), so the LCM is the larger number itself.

7 — prime

63 = 3² × 7

Prime	7	63	Highest power
3	—	3²	3²
7	7	7	7

— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.

LCM = 3² × 7 = 63

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Multiples of a Number - List the first 10 multiples of any number from 1 to 999

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