What is the Least Common Multiple of 542 and 555?
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 542 and 555 is 300810.
LCM(542,555) = 300810
Least Common Multiple of 542 and 555 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 542 and 555, than apply into the LCM equation.
GCF(542,555) = 1
LCM(542,555) = ( 542 × 555) / 1
LCM(542,555) = 300810 / 1
LCM(542,555) = 300810
Least Common Multiple (LCM) of 542 and 555 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 542 and 555. First we will calculate the prime factors of 542 and 555.
Prime Factorization of 542
Prime factors of 542 are 2, 271. Prime factorization of 542 in exponential form is:
542 = 21 × 2711
Prime Factorization of 555
Prime factors of 555 are 3, 5, 37. Prime factorization of 555 in exponential form is:
555 = 31 × 51 × 371
Now multiplying the highest exponent prime factors to calculate the LCM of 542 and 555.
LCM(542,555) = 21 × 2711 × 31 × 51 × 371
LCM(542,555) = 300810
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