What is the Least Common Multiple of 11640 and 11660?
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 11640 and 11660 is 6786120.
LCM(11640,11660) = 6786120
Least Common Multiple of 11640 and 11660 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11640 and 11660, than apply into the LCM equation.
GCF(11640,11660) = 20
LCM(11640,11660) = ( 11640 × 11660) / 20
LCM(11640,11660) = 135722400 / 20
LCM(11640,11660) = 6786120
Least Common Multiple (LCM) of 11640 and 11660 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 11640 and 11660. First we will calculate the prime factors of 11640 and 11660.
Prime Factorization of 11640
Prime factors of 11640 are 2, 3, 5, 97. Prime factorization of 11640 in exponential form is:
11640 = 23 × 31 × 51 × 971
Prime Factorization of 11660
Prime factors of 11660 are 2, 5, 11, 53. Prime factorization of 11660 in exponential form is:
11660 = 22 × 51 × 111 × 531
Now multiplying the highest exponent prime factors to calculate the LCM of 11640 and 11660.
LCM(11640,11660) = 23 × 31 × 51 × 971 × 111 × 531
LCM(11640,11660) = 6786120
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