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What is the Least Common Multiple of 5142 and 5156?

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 5142 and 5156 is 13256076.

LCM(5142,5156) = 13256076

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Least Common Multiple of 5142 and 5156 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 5142 and 5156, than apply into the LCM equation.

GCF(5142,5156) = 2
LCM(5142,5156) = ( 5142 × 5156) / 2
LCM(5142,5156) = 26512152 / 2
LCM(5142,5156) = 13256076

Least Common Multiple (LCM) of 5142 and 5156 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 5142 and 5156. First we will calculate the prime factors of 5142 and 5156.

Prime Factorization of 5142

Prime factors of 5142 are 2, 3, 857. Prime factorization of 5142 in exponential form is:

5142 = 21 × 31 × 8571

Prime Factorization of 5156

Prime factors of 5156 are 2, 1289. Prime factorization of 5156 in exponential form is:

5156 = 22 × 12891

Now multiplying the highest exponent prime factors to calculate the LCM of 5142 and 5156.

LCM(5142,5156) = 22 × 31 × 8571 × 12891
LCM(5142,5156) = 13256076