GCF and LCM Calculator Logo

What is the Least Common Multiple of 55971 and 55991?

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 55971 and 55991 is 3133872261.

LCM(55971,55991) = 3133872261

LCM Calculator and
and

Least Common Multiple of 55971 and 55991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 55971 and 55991, than apply into the LCM equation.

GCF(55971,55991) = 1
LCM(55971,55991) = ( 55971 × 55991) / 1
LCM(55971,55991) = 3133872261 / 1
LCM(55971,55991) = 3133872261

Least Common Multiple (LCM) of 55971 and 55991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 55971 and 55991. First we will calculate the prime factors of 55971 and 55991.

Prime Factorization of 55971

Prime factors of 55971 are 3, 691. Prime factorization of 55971 in exponential form is:

55971 = 34 × 6911

Prime Factorization of 55991

Prime factors of 55991 are 13, 59, 73. Prime factorization of 55991 in exponential form is:

55991 = 131 × 591 × 731

Now multiplying the highest exponent prime factors to calculate the LCM of 55971 and 55991.

LCM(55971,55991) = 34 × 6911 × 131 × 591 × 731
LCM(55971,55991) = 3133872261