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What is the Least Common Multiple of 68665 and 68670?

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 68665 and 68670 is 943045110.

LCM(68665,68670) = 943045110

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Least Common Multiple of 68665 and 68670 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68665 and 68670, than apply into the LCM equation.

GCF(68665,68670) = 5
LCM(68665,68670) = ( 68665 × 68670) / 5
LCM(68665,68670) = 4715225550 / 5
LCM(68665,68670) = 943045110

Least Common Multiple (LCM) of 68665 and 68670 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68665 and 68670. First we will calculate the prime factors of 68665 and 68670.

Prime Factorization of 68665

Prime factors of 68665 are 5, 31, 443. Prime factorization of 68665 in exponential form is:

68665 = 51 × 311 × 4431

Prime Factorization of 68670

Prime factors of 68670 are 2, 3, 5, 7, 109. Prime factorization of 68670 in exponential form is:

68670 = 21 × 32 × 51 × 71 × 1091

Now multiplying the highest exponent prime factors to calculate the LCM of 68665 and 68670.

LCM(68665,68670) = 51 × 311 × 4431 × 21 × 32 × 71 × 1091
LCM(68665,68670) = 943045110