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What is the Least Common Multiple of 18938 and 18958?

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 18938 and 18958 is 179513302.

LCM(18938,18958) = 179513302

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Least Common Multiple of 18938 and 18958 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18938 and 18958, than apply into the LCM equation.

GCF(18938,18958) = 2
LCM(18938,18958) = ( 18938 × 18958) / 2
LCM(18938,18958) = 359026604 / 2
LCM(18938,18958) = 179513302

Least Common Multiple (LCM) of 18938 and 18958 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18938 and 18958. First we will calculate the prime factors of 18938 and 18958.

Prime Factorization of 18938

Prime factors of 18938 are 2, 17, 557. Prime factorization of 18938 in exponential form is:

18938 = 21 × 171 × 5571

Prime Factorization of 18958

Prime factors of 18958 are 2, 9479. Prime factorization of 18958 in exponential form is:

18958 = 21 × 94791

Now multiplying the highest exponent prime factors to calculate the LCM of 18938 and 18958.

LCM(18938,18958) = 21 × 171 × 5571 × 94791
LCM(18938,18958) = 179513302