What is the Least Common Multiple of 664 and 679?
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 679 is 450856.
LCM(664,679) = 450856
Least Common Multiple of 664 and 679 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 679, than apply into the LCM equation.
GCF(664,679) = 1
LCM(664,679) = ( 664 × 679) / 1
LCM(664,679) = 450856 / 1
LCM(664,679) = 450856
Least Common Multiple (LCM) of 664 and 679 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 664 and 679. First we will calculate the prime factors of 664 and 679.
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 679
Prime factors of 679 are 7, 97. Prime factorization of 679 in exponential form is:
679 = 71 × 971
Now multiplying the highest exponent prime factors to calculate the LCM of 664 and 679.
LCM(664,679) = 23 × 831 × 71 × 971
LCM(664,679) = 450856
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