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What is the Least Common Multiple of 91661 and 91668?

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 91661 and 91668 is 8402380548.

LCM(91661,91668) = 8402380548

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Least Common Multiple of 91661 and 91668 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 91661 and 91668, than apply into the LCM equation.

GCF(91661,91668) = 1
LCM(91661,91668) = ( 91661 × 91668) / 1
LCM(91661,91668) = 8402380548 / 1
LCM(91661,91668) = 8402380548

Least Common Multiple (LCM) of 91661 and 91668 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 91661 and 91668. First we will calculate the prime factors of 91661 and 91668.

Prime Factorization of 91661

Prime factors of 91661 are 71, 1291. Prime factorization of 91661 in exponential form is:

91661 = 711 × 12911

Prime Factorization of 91668

Prime factors of 91668 are 2, 3, 7639. Prime factorization of 91668 in exponential form is:

91668 = 22 × 31 × 76391

Now multiplying the highest exponent prime factors to calculate the LCM of 91661 and 91668.

LCM(91661,91668) = 711 × 12911 × 22 × 31 × 76391
LCM(91661,91668) = 8402380548