What is the Least Common Multiple of 66989 and 67001?
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 66989 and 67001 is 4488329989.
LCM(66989,67001) = 4488329989
Least Common Multiple of 66989 and 67001 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 66989 and 67001, than apply into the LCM equation.
GCF(66989,67001) = 1
LCM(66989,67001) = ( 66989 × 67001) / 1
LCM(66989,67001) = 4488329989 / 1
LCM(66989,67001) = 4488329989
Least Common Multiple (LCM) of 66989 and 67001 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 66989 and 67001. First we will calculate the prime factors of 66989 and 67001.
Prime Factorization of 66989
Prime factors of 66989 are 13, 5153. Prime factorization of 66989 in exponential form is:
66989 = 131 × 51531
Prime Factorization of 67001
Prime factors of 67001 are 11, 6091. Prime factorization of 67001 in exponential form is:
67001 = 111 × 60911
Now multiplying the highest exponent prime factors to calculate the LCM of 66989 and 67001.
LCM(66989,67001) = 131 × 51531 × 111 × 60911
LCM(66989,67001) = 4488329989
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