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What is the Least Common Multiple of 10638 and 10658?

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 10638 and 10658 is 56689902.

LCM(10638,10658) = 56689902

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Least Common Multiple of 10638 and 10658 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 10638 and 10658, than apply into the LCM equation.

GCF(10638,10658) = 2
LCM(10638,10658) = ( 10638 × 10658) / 2
LCM(10638,10658) = 113379804 / 2
LCM(10638,10658) = 56689902

Least Common Multiple (LCM) of 10638 and 10658 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 10638 and 10658. First we will calculate the prime factors of 10638 and 10658.

Prime Factorization of 10638

Prime factors of 10638 are 2, 3, 197. Prime factorization of 10638 in exponential form is:

10638 = 21 × 33 × 1971

Prime Factorization of 10658

Prime factors of 10658 are 2, 73. Prime factorization of 10658 in exponential form is:

10658 = 21 × 732

Now multiplying the highest exponent prime factors to calculate the LCM of 10638 and 10658.

LCM(10638,10658) = 21 × 33 × 1971 × 732
LCM(10638,10658) = 56689902