What is the Least Common Multiple of 673 and 687?
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 673 and 687 is 462351.
LCM(673,687) = 462351
Least Common Multiple of 673 and 687 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 673 and 687, than apply into the LCM equation.
GCF(673,687) = 1
LCM(673,687) = ( 673 × 687) / 1
LCM(673,687) = 462351 / 1
LCM(673,687) = 462351
Least Common Multiple (LCM) of 673 and 687 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 673 and 687. First we will calculate the prime factors of 673 and 687.
Prime Factorization of 673
Prime factors of 673 are 673. Prime factorization of 673 in exponential form is:
673 = 6731
Prime Factorization of 687
Prime factors of 687 are 3, 229. Prime factorization of 687 in exponential form is:
687 = 31 × 2291
Now multiplying the highest exponent prime factors to calculate the LCM of 673 and 687.
LCM(673,687) = 6731 × 31 × 2291
LCM(673,687) = 462351
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