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What is the Least Common Multiple of 12542 and 12546?

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 12542 and 12546 is 78675966.

LCM(12542,12546) = 78675966

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Least Common Multiple of 12542 and 12546 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 12542 and 12546, than apply into the LCM equation.

GCF(12542,12546) = 2
LCM(12542,12546) = ( 12542 × 12546) / 2
LCM(12542,12546) = 157351932 / 2
LCM(12542,12546) = 78675966

Least Common Multiple (LCM) of 12542 and 12546 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 12542 and 12546. First we will calculate the prime factors of 12542 and 12546.

Prime Factorization of 12542

Prime factors of 12542 are 2, 6271. Prime factorization of 12542 in exponential form is:

12542 = 21 × 62711

Prime Factorization of 12546

Prime factors of 12546 are 2, 3, 17, 41. Prime factorization of 12546 in exponential form is:

12546 = 21 × 32 × 171 × 411

Now multiplying the highest exponent prime factors to calculate the LCM of 12542 and 12546.

LCM(12542,12546) = 21 × 62711 × 32 × 171 × 411
LCM(12542,12546) = 78675966