What is the Least Common Multiple of 11976 and 11990?
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 11976 and 11990 is 71796120.
LCM(11976,11990) = 71796120
Least Common Multiple of 11976 and 11990 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11976 and 11990, than apply into the LCM equation.
GCF(11976,11990) = 2
LCM(11976,11990) = ( 11976 × 11990) / 2
LCM(11976,11990) = 143592240 / 2
LCM(11976,11990) = 71796120
Least Common Multiple (LCM) of 11976 and 11990 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 11976 and 11990. First we will calculate the prime factors of 11976 and 11990.
Prime Factorization of 11976
Prime factors of 11976 are 2, 3, 499. Prime factorization of 11976 in exponential form is:
11976 = 23 × 31 × 4991
Prime Factorization of 11990
Prime factors of 11990 are 2, 5, 11, 109. Prime factorization of 11990 in exponential form is:
11990 = 21 × 51 × 111 × 1091
Now multiplying the highest exponent prime factors to calculate the LCM of 11976 and 11990.
LCM(11976,11990) = 23 × 31 × 4991 × 51 × 111 × 1091
LCM(11976,11990) = 71796120
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