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What is the Least Common Multiple of 55780 and 55791?

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 55780 and 55791 is 3112021980.

LCM(55780,55791) = 3112021980

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Least Common Multiple of 55780 and 55791 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 55780 and 55791, than apply into the LCM equation.

GCF(55780,55791) = 1
LCM(55780,55791) = ( 55780 × 55791) / 1
LCM(55780,55791) = 3112021980 / 1
LCM(55780,55791) = 3112021980

Least Common Multiple (LCM) of 55780 and 55791 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 55780 and 55791. First we will calculate the prime factors of 55780 and 55791.

Prime Factorization of 55780

Prime factors of 55780 are 2, 5, 2789. Prime factorization of 55780 in exponential form is:

55780 = 22 × 51 × 27891

Prime Factorization of 55791

Prime factors of 55791 are 3, 6199. Prime factorization of 55791 in exponential form is:

55791 = 32 × 61991

Now multiplying the highest exponent prime factors to calculate the LCM of 55780 and 55791.

LCM(55780,55791) = 22 × 51 × 27891 × 32 × 61991
LCM(55780,55791) = 3112021980