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What is the Least Common Multiple of 68622 and 68638?

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 68622 and 68638 is 2355038418.

LCM(68622,68638) = 2355038418

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Least Common Multiple of 68622 and 68638 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68622 and 68638, than apply into the LCM equation.

GCF(68622,68638) = 2
LCM(68622,68638) = ( 68622 × 68638) / 2
LCM(68622,68638) = 4710076836 / 2
LCM(68622,68638) = 2355038418

Least Common Multiple (LCM) of 68622 and 68638 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68622 and 68638. First we will calculate the prime factors of 68622 and 68638.

Prime Factorization of 68622

Prime factors of 68622 are 2, 3, 11437. Prime factorization of 68622 in exponential form is:

68622 = 21 × 31 × 114371

Prime Factorization of 68638

Prime factors of 68638 are 2, 34319. Prime factorization of 68638 in exponential form is:

68638 = 21 × 343191

Now multiplying the highest exponent prime factors to calculate the LCM of 68622 and 68638.

LCM(68622,68638) = 21 × 31 × 114371 × 343191
LCM(68622,68638) = 2355038418