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What is the Least Common Multiple of 51222 and 51240?

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 51222 and 51240 is 437435880.

LCM(51222,51240) = 437435880

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Least Common Multiple of 51222 and 51240 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51222 and 51240, than apply into the LCM equation.

GCF(51222,51240) = 6
LCM(51222,51240) = ( 51222 × 51240) / 6
LCM(51222,51240) = 2624615280 / 6
LCM(51222,51240) = 437435880

Least Common Multiple (LCM) of 51222 and 51240 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51222 and 51240. First we will calculate the prime factors of 51222 and 51240.

Prime Factorization of 51222

Prime factors of 51222 are 2, 3, 8537. Prime factorization of 51222 in exponential form is:

51222 = 21 × 31 × 85371

Prime Factorization of 51240

Prime factors of 51240 are 2, 3, 5, 7, 61. Prime factorization of 51240 in exponential form is:

51240 = 23 × 31 × 51 × 71 × 611

Now multiplying the highest exponent prime factors to calculate the LCM of 51222 and 51240.

LCM(51222,51240) = 23 × 31 × 85371 × 51 × 71 × 611
LCM(51222,51240) = 437435880