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What is the Least Common Multiple of 72131 and 72142?

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 72131 and 72142 is 5203674602.

LCM(72131,72142) = 5203674602

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Least Common Multiple of 72131 and 72142 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72131 and 72142, than apply into the LCM equation.

GCF(72131,72142) = 1
LCM(72131,72142) = ( 72131 × 72142) / 1
LCM(72131,72142) = 5203674602 / 1
LCM(72131,72142) = 5203674602

Least Common Multiple (LCM) of 72131 and 72142 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72131 and 72142. First we will calculate the prime factors of 72131 and 72142.

Prime Factorization of 72131

Prime factors of 72131 are 17, 4243. Prime factorization of 72131 in exponential form is:

72131 = 171 × 42431

Prime Factorization of 72142

Prime factors of 72142 are 2, 7, 5153. Prime factorization of 72142 in exponential form is:

72142 = 21 × 71 × 51531

Now multiplying the highest exponent prime factors to calculate the LCM of 72131 and 72142.

LCM(72131,72142) = 171 × 42431 × 21 × 71 × 51531
LCM(72131,72142) = 5203674602