What is the Least Common Multiple of 531 and 543?
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 531 and 543 is 96111.
LCM(531,543) = 96111
Least Common Multiple of 531 and 543 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 531 and 543, than apply into the LCM equation.
GCF(531,543) = 3
LCM(531,543) = ( 531 × 543) / 3
LCM(531,543) = 288333 / 3
LCM(531,543) = 96111
Least Common Multiple (LCM) of 531 and 543 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 531 and 543. First we will calculate the prime factors of 531 and 543.
Prime Factorization of 531
Prime factors of 531 are 3, 59. Prime factorization of 531 in exponential form is:
531 = 32 × 591
Prime Factorization of 543
Prime factors of 543 are 3, 181. Prime factorization of 543 in exponential form is:
543 = 31 × 1811
Now multiplying the highest exponent prime factors to calculate the LCM of 531 and 543.
LCM(531,543) = 32 × 591 × 1811
LCM(531,543) = 96111
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