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What is the Least Common Multiple of 18992 and 18996?

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 18992 and 18996 is 90193008.

LCM(18992,18996) = 90193008

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Least Common Multiple of 18992 and 18996 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 18992 and 18996, than apply into the LCM equation.

GCF(18992,18996) = 4
LCM(18992,18996) = ( 18992 × 18996) / 4
LCM(18992,18996) = 360772032 / 4
LCM(18992,18996) = 90193008

Least Common Multiple (LCM) of 18992 and 18996 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 18992 and 18996. First we will calculate the prime factors of 18992 and 18996.

Prime Factorization of 18992

Prime factors of 18992 are 2, 1187. Prime factorization of 18992 in exponential form is:

18992 = 24 × 11871

Prime Factorization of 18996

Prime factors of 18996 are 2, 3, 1583. Prime factorization of 18996 in exponential form is:

18996 = 22 × 31 × 15831

Now multiplying the highest exponent prime factors to calculate the LCM of 18992 and 18996.

LCM(18992,18996) = 24 × 11871 × 31 × 15831
LCM(18992,18996) = 90193008