LCM for 33 and 55

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What's the Least Common Multiple (LCM) of 33 and 55?

Answer

LCM of 33 and 55 is
165

First common multiples: 165, 330, 495, …

165 is divisible by both: 165 ÷ 33 = 5, 165 ÷ 55 = 3 — and 5 and 3 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/33 by 5 and of y/55 by 3.

33 = 3 × 11

55 = 5 × 11

Prime3355Highest power
33—3
5—55
11111111

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

LCM = 3 × 5 × 11 = 165

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LCM Table

Number 1Number 2LCM
33341,122
33351,155
33381,254
3339429
33401,320
33411,353
3342462
33431,419
3344132
33461,518
33501,650
33521,716
3355165
3377231
33121363

FAQ

What's the Least Common Multiple (LCM) of 33 and 55?

LCM of 33 and 55 is 165

How to find the LCM of 33 and 55 using prime factorization?

To find the LCM of 33 and 55, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 165.

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 33 and 55: LCM = 165, GCF = 11.

See Also