What is the LCM of 1 and 100?

What's the Least Common Multiple (LCM) of 1 and 100?

Answer

LCM of 1 and 100 is

100

First common multiples: 100, 200, 300, …

1 divides every number: the GCF with 1 is always 1, and the LCM is the other number itself — here 100.

1 — no prime factors

100 = 2² × 5²

Prime	1	100	Highest power
2	—	2²	2²
5	—	5²	5²

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

LCM = 2² × 5² = 100

Greatest Common Factor - Find the Greatest Common Factor (GCF) of two numbers
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Greatest Common Factor of 3 Numbers - Find the Greatest Common Factor (GCF) of three numbers
Multiples of a Number - List the first 10 multiples of any number from 1 to 999

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