What is the Least Common Multiple of 664 and 669?
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 664 and 669 is 444216.
LCM(664,669) = 444216
Least Common Multiple of 664 and 669 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 664 and 669, than apply into the LCM equation.
GCF(664,669) = 1
LCM(664,669) = ( 664 × 669) / 1
LCM(664,669) = 444216 / 1
LCM(664,669) = 444216
Least Common Multiple (LCM) of 664 and 669 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 664 and 669. First we will calculate the prime factors of 664 and 669.
Prime Factorization of 664
Prime factors of 664 are 2, 83. Prime factorization of 664 in exponential form is:
664 = 23 × 831
Prime Factorization of 669
Prime factors of 669 are 3, 223. Prime factorization of 669 in exponential form is:
669 = 31 × 2231
Now multiplying the highest exponent prime factors to calculate the LCM of 664 and 669.
LCM(664,669) = 23 × 831 × 31 × 2231
LCM(664,669) = 444216
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