What is the Least Common Multiple of 3984 and 3996?
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 3984 and 3996 is 1326672.
LCM(3984,3996) = 1326672
Least Common Multiple of 3984 and 3996 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3984 and 3996, than apply into the LCM equation.
GCF(3984,3996) = 12
LCM(3984,3996) = ( 3984 × 3996) / 12
LCM(3984,3996) = 15920064 / 12
LCM(3984,3996) = 1326672
Least Common Multiple (LCM) of 3984 and 3996 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 3984 and 3996. First we will calculate the prime factors of 3984 and 3996.
Prime Factorization of 3984
Prime factors of 3984 are 2, 3, 83. Prime factorization of 3984 in exponential form is:
3984 = 24 × 31 × 831
Prime Factorization of 3996
Prime factors of 3996 are 2, 3, 37. Prime factorization of 3996 in exponential form is:
3996 = 22 × 33 × 371
Now multiplying the highest exponent prime factors to calculate the LCM of 3984 and 3996.
LCM(3984,3996) = 24 × 33 × 831 × 371
LCM(3984,3996) = 1326672
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