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What is the Least Common Multiple of 12139 and 12155?

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 12139 and 12155 is 147549545.

LCM(12139,12155) = 147549545

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Least Common Multiple of 12139 and 12155 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12139 and 12155, than apply into the LCM equation.

GCF(12139,12155) = 1
LCM(12139,12155) = ( 12139 × 12155) / 1
LCM(12139,12155) = 147549545 / 1
LCM(12139,12155) = 147549545

Least Common Multiple (LCM) of 12139 and 12155 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12139 and 12155. First we will calculate the prime factors of 12139 and 12155.

Prime Factorization of 12139

Prime factors of 12139 are 61, 199. Prime factorization of 12139 in exponential form is:

12139 = 611 × 1991

Prime Factorization of 12155

Prime factors of 12155 are 5, 11, 13, 17. Prime factorization of 12155 in exponential form is:

12155 = 51 × 111 × 131 × 171

Now multiplying the highest exponent prime factors to calculate the LCM of 12139 and 12155.

LCM(12139,12155) = 611 × 1991 × 51 × 111 × 131 × 171
LCM(12139,12155) = 147549545