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What is the Least Common Multiple of 39425 and 39438?

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 39425 and 39438 is 1554843150.

LCM(39425,39438) = 1554843150

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Least Common Multiple of 39425 and 39438 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 39425 and 39438, than apply into the LCM equation.

GCF(39425,39438) = 1
LCM(39425,39438) = ( 39425 × 39438) / 1
LCM(39425,39438) = 1554843150 / 1
LCM(39425,39438) = 1554843150

Least Common Multiple (LCM) of 39425 and 39438 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 39425 and 39438. First we will calculate the prime factors of 39425 and 39438.

Prime Factorization of 39425

Prime factors of 39425 are 5, 19, 83. Prime factorization of 39425 in exponential form is:

39425 = 52 × 191 × 831

Prime Factorization of 39438

Prime factors of 39438 are 2, 3, 7, 313. Prime factorization of 39438 in exponential form is:

39438 = 21 × 32 × 71 × 3131

Now multiplying the highest exponent prime factors to calculate the LCM of 39425 and 39438.

LCM(39425,39438) = 52 × 191 × 831 × 21 × 32 × 71 × 3131
LCM(39425,39438) = 1554843150