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What is the Least Common Multiple of 68409 and 68422?

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 68409 and 68422 is 4680680598.

LCM(68409,68422) = 4680680598

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Least Common Multiple of 68409 and 68422 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68409 and 68422, than apply into the LCM equation.

GCF(68409,68422) = 1
LCM(68409,68422) = ( 68409 × 68422) / 1
LCM(68409,68422) = 4680680598 / 1
LCM(68409,68422) = 4680680598

Least Common Multiple (LCM) of 68409 and 68422 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68409 and 68422. First we will calculate the prime factors of 68409 and 68422.

Prime Factorization of 68409

Prime factors of 68409 are 3, 11, 691. Prime factorization of 68409 in exponential form is:

68409 = 32 × 111 × 6911

Prime Factorization of 68422

Prime factors of 68422 are 2, 34211. Prime factorization of 68422 in exponential form is:

68422 = 21 × 342111

Now multiplying the highest exponent prime factors to calculate the LCM of 68409 and 68422.

LCM(68409,68422) = 32 × 111 × 6911 × 21 × 342111
LCM(68409,68422) = 4680680598