What is the Least Common Multiple of 543 and 557?
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 543 and 557 is 302451.
LCM(543,557) = 302451
Least Common Multiple of 543 and 557 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 543 and 557, than apply into the LCM equation.
GCF(543,557) = 1
LCM(543,557) = ( 543 × 557) / 1
LCM(543,557) = 302451 / 1
LCM(543,557) = 302451
Least Common Multiple (LCM) of 543 and 557 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 543 and 557. First we will calculate the prime factors of 543 and 557.
Prime Factorization of 543
Prime factors of 543 are 3, 181. Prime factorization of 543 in exponential form is:
543 = 31 × 1811
Prime Factorization of 557
Prime factors of 557 are 557. Prime factorization of 557 in exponential form is:
557 = 5571
Now multiplying the highest exponent prime factors to calculate the LCM of 543 and 557.
LCM(543,557) = 31 × 1811 × 5571
LCM(543,557) = 302451
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