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What is the Least Common Multiple of 73776 and 73785?

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 73776 and 73785 is 1814520720.

LCM(73776,73785) = 1814520720

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Least Common Multiple of 73776 and 73785 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 73776 and 73785, than apply into the LCM equation.

GCF(73776,73785) = 3
LCM(73776,73785) = ( 73776 × 73785) / 3
LCM(73776,73785) = 5443562160 / 3
LCM(73776,73785) = 1814520720

Least Common Multiple (LCM) of 73776 and 73785 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 73776 and 73785. First we will calculate the prime factors of 73776 and 73785.

Prime Factorization of 73776

Prime factors of 73776 are 2, 3, 29, 53. Prime factorization of 73776 in exponential form is:

73776 = 24 × 31 × 291 × 531

Prime Factorization of 73785

Prime factors of 73785 are 3, 5, 4919. Prime factorization of 73785 in exponential form is:

73785 = 31 × 51 × 49191

Now multiplying the highest exponent prime factors to calculate the LCM of 73776 and 73785.

LCM(73776,73785) = 24 × 31 × 291 × 531 × 51 × 49191
LCM(73776,73785) = 1814520720