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What is the Least Common Multiple of 61800 and 61806?

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 61800 and 61806 is 636601800.

LCM(61800,61806) = 636601800

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Least Common Multiple of 61800 and 61806 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 61800 and 61806, than apply into the LCM equation.

GCF(61800,61806) = 6
LCM(61800,61806) = ( 61800 × 61806) / 6
LCM(61800,61806) = 3819610800 / 6
LCM(61800,61806) = 636601800

Least Common Multiple (LCM) of 61800 and 61806 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 61800 and 61806. First we will calculate the prime factors of 61800 and 61806.

Prime Factorization of 61800

Prime factors of 61800 are 2, 3, 5, 103. Prime factorization of 61800 in exponential form is:

61800 = 23 × 31 × 52 × 1031

Prime Factorization of 61806

Prime factors of 61806 are 2, 3, 10301. Prime factorization of 61806 in exponential form is:

61806 = 21 × 31 × 103011

Now multiplying the highest exponent prime factors to calculate the LCM of 61800 and 61806.

LCM(61800,61806) = 23 × 31 × 52 × 1031 × 103011
LCM(61800,61806) = 636601800