LCM for 105 and 165

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What's the Least Common Multiple (LCM) of 105 and 165?

Answer

LCM of 105 and 165 is
1,155

First common multiples: 1,155; 2,310; 3,465; …

1,155 is divisible by both: 1,155 ÷ 105 = 11; 1,155 ÷ 165 = 7 — and 11 and 7 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/105 by 11 and of y/165 by 7.

105 = 3 × 5 × 7

165 = 3 × 5 × 11

Prime105165Highest power
3333
5555
77—7
11—1111

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

LCM = 3 × 5 × 7 × 11 = 1,155

See Also

FAQ

What's the Least Common Multiple (LCM) of 105 and 165?

LCM of 105 and 165 is 1,155

How to find the LCM of 105 and 165 using prime factorization?

To find the LCM of 105 and 165, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 1,155.

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 105 and 165: LCM = 1,155, GCF = 15.