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What is the Least Common Multiple of 80940 and 80946?

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 80940 and 80946 is 1091961540.

LCM(80940,80946) = 1091961540

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Least Common Multiple of 80940 and 80946 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 80940 and 80946, than apply into the LCM equation.

GCF(80940,80946) = 6
LCM(80940,80946) = ( 80940 × 80946) / 6
LCM(80940,80946) = 6551769240 / 6
LCM(80940,80946) = 1091961540

Least Common Multiple (LCM) of 80940 and 80946 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 80940 and 80946. First we will calculate the prime factors of 80940 and 80946.

Prime Factorization of 80940

Prime factors of 80940 are 2, 3, 5, 19, 71. Prime factorization of 80940 in exponential form is:

80940 = 22 × 31 × 51 × 191 × 711

Prime Factorization of 80946

Prime factors of 80946 are 2, 3, 1499. Prime factorization of 80946 in exponential form is:

80946 = 21 × 33 × 14991

Now multiplying the highest exponent prime factors to calculate the LCM of 80940 and 80946.

LCM(80940,80946) = 22 × 33 × 51 × 191 × 711 × 14991
LCM(80940,80946) = 1091961540