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What is the Least Common Multiple of 68457 and 68465?

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 68457 and 68465 is 4686908505.

LCM(68457,68465) = 4686908505

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Least Common Multiple of 68457 and 68465 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68457 and 68465, than apply into the LCM equation.

GCF(68457,68465) = 1
LCM(68457,68465) = ( 68457 × 68465) / 1
LCM(68457,68465) = 4686908505 / 1
LCM(68457,68465) = 4686908505

Least Common Multiple (LCM) of 68457 and 68465 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68457 and 68465. First we will calculate the prime factors of 68457 and 68465.

Prime Factorization of 68457

Prime factors of 68457 are 3, 19, 1201. Prime factorization of 68457 in exponential form is:

68457 = 31 × 191 × 12011

Prime Factorization of 68465

Prime factors of 68465 are 5, 13693. Prime factorization of 68465 in exponential form is:

68465 = 51 × 136931

Now multiplying the highest exponent prime factors to calculate the LCM of 68457 and 68465.

LCM(68457,68465) = 31 × 191 × 12011 × 51 × 136931
LCM(68457,68465) = 4686908505