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What is the Least Common Multiple of 1178 and 1182?

Least common multiple or lowest common denominator (lcd) can be calculated in two way; with the LCM formula calculation of greatest common factor (GCF), or multiplying the prime factors with the highest exponent factor.

Least common multiple (LCM) of 1178 and 1182 is 696198.

LCM(1178,1182) = 696198

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Least Common Multiple of 1178 and 1182 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1178 and 1182, than apply into the LCM equation.

GCF(1178,1182) = 2
LCM(1178,1182) = ( 1178 × 1182) / 2
LCM(1178,1182) = 1392396 / 2
LCM(1178,1182) = 696198

Least Common Multiple (LCM) of 1178 and 1182 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1178 and 1182. First we will calculate the prime factors of 1178 and 1182.

Prime Factorization of 1178

Prime factors of 1178 are 2, 19, 31. Prime factorization of 1178 in exponential form is:

1178 = 21 × 191 × 311

Prime Factorization of 1182

Prime factors of 1182 are 2, 3, 197. Prime factorization of 1182 in exponential form is:

1182 = 21 × 31 × 1971

Now multiplying the highest exponent prime factors to calculate the LCM of 1178 and 1182.

LCM(1178,1182) = 21 × 191 × 311 × 31 × 1971
LCM(1178,1182) = 696198