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What is the Least Common Multiple of 51450 and 51457?

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 51450 and 51457 is 378208950.

LCM(51450,51457) = 378208950

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Least Common Multiple of 51450 and 51457 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51450 and 51457, than apply into the LCM equation.

GCF(51450,51457) = 7
LCM(51450,51457) = ( 51450 × 51457) / 7
LCM(51450,51457) = 2647462650 / 7
LCM(51450,51457) = 378208950

Least Common Multiple (LCM) of 51450 and 51457 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51450 and 51457. First we will calculate the prime factors of 51450 and 51457.

Prime Factorization of 51450

Prime factors of 51450 are 2, 3, 5, 7. Prime factorization of 51450 in exponential form is:

51450 = 21 × 31 × 52 × 73

Prime Factorization of 51457

Prime factors of 51457 are 7, 7351. Prime factorization of 51457 in exponential form is:

51457 = 71 × 73511

Now multiplying the highest exponent prime factors to calculate the LCM of 51450 and 51457.

LCM(51450,51457) = 21 × 31 × 52 × 73 × 73511
LCM(51450,51457) = 378208950