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What is the Least Common Multiple of 4989 and 4997?

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 4989 and 4997 is 24930033.

LCM(4989,4997) = 24930033

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Least Common Multiple of 4989 and 4997 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4989 and 4997, than apply into the LCM equation.

GCF(4989,4997) = 1
LCM(4989,4997) = ( 4989 × 4997) / 1
LCM(4989,4997) = 24930033 / 1
LCM(4989,4997) = 24930033

Least Common Multiple (LCM) of 4989 and 4997 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4989 and 4997. First we will calculate the prime factors of 4989 and 4997.

Prime Factorization of 4989

Prime factors of 4989 are 3, 1663. Prime factorization of 4989 in exponential form is:

4989 = 31 × 16631

Prime Factorization of 4997

Prime factors of 4997 are 19, 263. Prime factorization of 4997 in exponential form is:

4997 = 191 × 2631

Now multiplying the highest exponent prime factors to calculate the LCM of 4989 and 4997.

LCM(4989,4997) = 31 × 16631 × 191 × 2631
LCM(4989,4997) = 24930033