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What is the Least Common Multiple of 73821 and 73830?

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 73821 and 73830 is 1816734810.

LCM(73821,73830) = 1816734810

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Least Common Multiple of 73821 and 73830 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 73821 and 73830, than apply into the LCM equation.

GCF(73821,73830) = 3
LCM(73821,73830) = ( 73821 × 73830) / 3
LCM(73821,73830) = 5450204430 / 3
LCM(73821,73830) = 1816734810

Least Common Multiple (LCM) of 73821 and 73830 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 73821 and 73830. First we will calculate the prime factors of 73821 and 73830.

Prime Factorization of 73821

Prime factors of 73821 are 3, 11, 2237. Prime factorization of 73821 in exponential form is:

73821 = 31 × 111 × 22371

Prime Factorization of 73830

Prime factors of 73830 are 2, 3, 5, 23, 107. Prime factorization of 73830 in exponential form is:

73830 = 21 × 31 × 51 × 231 × 1071

Now multiplying the highest exponent prime factors to calculate the LCM of 73821 and 73830.

LCM(73821,73830) = 31 × 111 × 22371 × 21 × 51 × 231 × 1071
LCM(73821,73830) = 1816734810