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What is the Least Common Multiple of 73809 and 73818?

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 73809 and 73818 is 605381418.

LCM(73809,73818) = 605381418

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Least Common Multiple of 73809 and 73818 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 73809 and 73818, than apply into the LCM equation.

GCF(73809,73818) = 9
LCM(73809,73818) = ( 73809 × 73818) / 9
LCM(73809,73818) = 5448432762 / 9
LCM(73809,73818) = 605381418

Least Common Multiple (LCM) of 73809 and 73818 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 73809 and 73818. First we will calculate the prime factors of 73809 and 73818.

Prime Factorization of 73809

Prime factors of 73809 are 3, 59, 139. Prime factorization of 73809 in exponential form is:

73809 = 32 × 591 × 1391

Prime Factorization of 73818

Prime factors of 73818 are 2, 3, 1367. Prime factorization of 73818 in exponential form is:

73818 = 21 × 33 × 13671

Now multiplying the highest exponent prime factors to calculate the LCM of 73809 and 73818.

LCM(73809,73818) = 33 × 591 × 1391 × 21 × 13671
LCM(73809,73818) = 605381418