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What is the Least Common Multiple of 15128 and 15142?

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 15128 and 15142 is 114534088.

LCM(15128,15142) = 114534088

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Least Common Multiple of 15128 and 15142 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15128 and 15142, than apply into the LCM equation.

GCF(15128,15142) = 2
LCM(15128,15142) = ( 15128 × 15142) / 2
LCM(15128,15142) = 229068176 / 2
LCM(15128,15142) = 114534088

Least Common Multiple (LCM) of 15128 and 15142 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15128 and 15142. First we will calculate the prime factors of 15128 and 15142.

Prime Factorization of 15128

Prime factors of 15128 are 2, 31, 61. Prime factorization of 15128 in exponential form is:

15128 = 23 × 311 × 611

Prime Factorization of 15142

Prime factors of 15142 are 2, 67, 113. Prime factorization of 15142 in exponential form is:

15142 = 21 × 671 × 1131

Now multiplying the highest exponent prime factors to calculate the LCM of 15128 and 15142.

LCM(15128,15142) = 23 × 311 × 611 × 671 × 1131
LCM(15128,15142) = 114534088