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What is the Least Common Multiple of 77405 and 77416?

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 77405 and 77416 is 5992385480.

LCM(77405,77416) = 5992385480

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Least Common Multiple of 77405 and 77416 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77405 and 77416, than apply into the LCM equation.

GCF(77405,77416) = 1
LCM(77405,77416) = ( 77405 × 77416) / 1
LCM(77405,77416) = 5992385480 / 1
LCM(77405,77416) = 5992385480

Least Common Multiple (LCM) of 77405 and 77416 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77405 and 77416. First we will calculate the prime factors of 77405 and 77416.

Prime Factorization of 77405

Prime factors of 77405 are 5, 113, 137. Prime factorization of 77405 in exponential form is:

77405 = 51 × 1131 × 1371

Prime Factorization of 77416

Prime factors of 77416 are 2, 9677. Prime factorization of 77416 in exponential form is:

77416 = 23 × 96771

Now multiplying the highest exponent prime factors to calculate the LCM of 77405 and 77416.

LCM(77405,77416) = 51 × 1131 × 1371 × 23 × 96771
LCM(77405,77416) = 5992385480