GCF and LCM Calculator Logo

What is the Least Common Multiple of 11977 and 11981?

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 11977 and 11981 is 143496437.

LCM(11977,11981) = 143496437

LCM Calculator and
and

Least Common Multiple of 11977 and 11981 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11977 and 11981, than apply into the LCM equation.

GCF(11977,11981) = 1
LCM(11977,11981) = ( 11977 × 11981) / 1
LCM(11977,11981) = 143496437 / 1
LCM(11977,11981) = 143496437

Least Common Multiple (LCM) of 11977 and 11981 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11977 and 11981. First we will calculate the prime factors of 11977 and 11981.

Prime Factorization of 11977

Prime factors of 11977 are 7, 29, 59. Prime factorization of 11977 in exponential form is:

11977 = 71 × 291 × 591

Prime Factorization of 11981

Prime factors of 11981 are 11981. Prime factorization of 11981 in exponential form is:

11981 = 119811

Now multiplying the highest exponent prime factors to calculate the LCM of 11977 and 11981.

LCM(11977,11981) = 71 × 291 × 591 × 119811
LCM(11977,11981) = 143496437