What is the LCM of 1 and 5?

What's the Least Common Multiple (LCM) of 1 and 5?

Answer

LCM of 1 and 5 is

5

First common multiples: 5, 10, 15, …

1 divides every number: the GCF with 1 is always 1, and the LCM is the other number itself — here 5.

1 — no prime factors

5 — prime

Prime	1	5	Highest power
5	—	5	5

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

LCM = 5

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

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