LCM for 45 and 117

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What's the Least Common Multiple (LCM) of 45 and 117?

Answer

LCM of 45 and 117 is
585

First common multiples: 585; 1,170; 1,755; …

585 is divisible by both: 585 ÷ 45 = 13, 585 ÷ 117 = 5 — and 13 and 5 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/45 by 13 and of y/117 by 5.

45 = 32 × 5

117 = 32 × 13

Prime45117Highest power
3323232
55—5
13—1313

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

LCM = 32 × 5 × 13 = 585

See Also

FAQ

What's the Least Common Multiple (LCM) of 45 and 117?

LCM of 45 and 117 is 585

How to find the LCM of 45 and 117 using prime factorization?

To find the LCM of 45 and 117, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 585.

What is the difference between LCM and GCF?

LCM (Least Common Multiple) is the smallest number divisible by both numbers, while GCF (Greatest Common Factor) is the largest number that divides both. For 45 and 117: LCM = 585, GCF = 9.