What is the Least Common Multiple of 538 and 546?
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 538 and 546 is 146874.
LCM(538,546) = 146874
Least Common Multiple of 538 and 546 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 538 and 546, than apply into the LCM equation.
GCF(538,546) = 2
LCM(538,546) = ( 538 × 546) / 2
LCM(538,546) = 293748 / 2
LCM(538,546) = 146874
Least Common Multiple (LCM) of 538 and 546 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 538 and 546. First we will calculate the prime factors of 538 and 546.
Prime Factorization of 538
Prime factors of 538 are 2, 269. Prime factorization of 538 in exponential form is:
538 = 21 × 2691
Prime Factorization of 546
Prime factors of 546 are 2, 3, 7, 13. Prime factorization of 546 in exponential form is:
546 = 21 × 31 × 71 × 131
Now multiplying the highest exponent prime factors to calculate the LCM of 538 and 546.
LCM(538,546) = 21 × 2691 × 31 × 71 × 131
LCM(538,546) = 146874
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