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What is the Least Common Multiple of 72548 and 72556?

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 72548 and 72556 is 1315948172.

LCM(72548,72556) = 1315948172

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Least Common Multiple of 72548 and 72556 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72548 and 72556, than apply into the LCM equation.

GCF(72548,72556) = 4
LCM(72548,72556) = ( 72548 × 72556) / 4
LCM(72548,72556) = 5263792688 / 4
LCM(72548,72556) = 1315948172

Least Common Multiple (LCM) of 72548 and 72556 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72548 and 72556. First we will calculate the prime factors of 72548 and 72556.

Prime Factorization of 72548

Prime factors of 72548 are 2, 7, 2591. Prime factorization of 72548 in exponential form is:

72548 = 22 × 71 × 25911

Prime Factorization of 72556

Prime factors of 72556 are 2, 11, 17, 97. Prime factorization of 72556 in exponential form is:

72556 = 22 × 111 × 171 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 72548 and 72556.

LCM(72548,72556) = 22 × 71 × 25911 × 111 × 171 × 971
LCM(72548,72556) = 1315948172