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What is the Least Common Multiple of 30419 and 30438?

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 30419 and 30438 is 48731238.

LCM(30419,30438) = 48731238

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Least Common Multiple of 30419 and 30438 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30419 and 30438, than apply into the LCM equation.

GCF(30419,30438) = 19
LCM(30419,30438) = ( 30419 × 30438) / 19
LCM(30419,30438) = 925893522 / 19
LCM(30419,30438) = 48731238

Least Common Multiple (LCM) of 30419 and 30438 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30419 and 30438. First we will calculate the prime factors of 30419 and 30438.

Prime Factorization of 30419

Prime factors of 30419 are 19, 1601. Prime factorization of 30419 in exponential form is:

30419 = 191 × 16011

Prime Factorization of 30438

Prime factors of 30438 are 2, 3, 19, 89. Prime factorization of 30438 in exponential form is:

30438 = 21 × 32 × 191 × 891

Now multiplying the highest exponent prime factors to calculate the LCM of 30419 and 30438.

LCM(30419,30438) = 191 × 16011 × 21 × 32 × 891
LCM(30419,30438) = 48731238