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What is the Least Common Multiple of 30728 and 30748?

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 30728 and 30748 is 236206136.

LCM(30728,30748) = 236206136

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Least Common Multiple of 30728 and 30748 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30728 and 30748, than apply into the LCM equation.

GCF(30728,30748) = 4
LCM(30728,30748) = ( 30728 × 30748) / 4
LCM(30728,30748) = 944824544 / 4
LCM(30728,30748) = 236206136

Least Common Multiple (LCM) of 30728 and 30748 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30728 and 30748. First we will calculate the prime factors of 30728 and 30748.

Prime Factorization of 30728

Prime factors of 30728 are 2, 23, 167. Prime factorization of 30728 in exponential form is:

30728 = 23 × 231 × 1671

Prime Factorization of 30748

Prime factors of 30748 are 2, 7687. Prime factorization of 30748 in exponential form is:

30748 = 22 × 76871

Now multiplying the highest exponent prime factors to calculate the LCM of 30728 and 30748.

LCM(30728,30748) = 23 × 231 × 1671 × 76871
LCM(30728,30748) = 236206136