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What is the Least Common Multiple of 67622 and 67638?

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 67622 and 67638 is 2286908418.

LCM(67622,67638) = 2286908418

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Least Common Multiple of 67622 and 67638 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67622 and 67638, than apply into the LCM equation.

GCF(67622,67638) = 2
LCM(67622,67638) = ( 67622 × 67638) / 2
LCM(67622,67638) = 4573816836 / 2
LCM(67622,67638) = 2286908418

Least Common Multiple (LCM) of 67622 and 67638 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67622 and 67638. First we will calculate the prime factors of 67622 and 67638.

Prime Factorization of 67622

Prime factors of 67622 are 2, 33811. Prime factorization of 67622 in exponential form is:

67622 = 21 × 338111

Prime Factorization of 67638

Prime factors of 67638 are 2, 3, 11273. Prime factorization of 67638 in exponential form is:

67638 = 21 × 31 × 112731

Now multiplying the highest exponent prime factors to calculate the LCM of 67622 and 67638.

LCM(67622,67638) = 21 × 338111 × 31 × 112731
LCM(67622,67638) = 2286908418