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Least Common Multiple of 198 and 207

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 198 and 207 is 4554.

LCM(198,207) = 4554

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Least Common Multiple of 198 and 207 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 198 and 207, than apply into the LCM equation.

GCF(198,207) = 9
LCM(198,207) = ( 198 × 207) / 9
LCM(198,207) = 40986 / 9
LCM(198,207) = 4554

Least Common Multiple (LCM) of 198 and 207 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 198 and 207. First we will calculate the prime factors of 198 and 207.

Prime Factorization of 198

Prime factors of 198 are 2, 3, 11. Prime factorization of 198 in exponential form is:

198 = 21 × 32 × 111

Prime Factorization of 207

Prime factors of 207 are 3, 23. Prime factorization of 207 in exponential form is:

207 = 32 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 198 and 207.

LCM(198,207) = 21 × 32 × 111 × 231
LCM(198,207) = 4554

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