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What is the Least Common Multiple of 69940 and 69946?

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 69940 and 69946 is 2446011620.

LCM(69940,69946) = 2446011620

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Least Common Multiple of 69940 and 69946 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69940 and 69946, than apply into the LCM equation.

GCF(69940,69946) = 2
LCM(69940,69946) = ( 69940 × 69946) / 2
LCM(69940,69946) = 4892023240 / 2
LCM(69940,69946) = 2446011620

Least Common Multiple (LCM) of 69940 and 69946 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69940 and 69946. First we will calculate the prime factors of 69940 and 69946.

Prime Factorization of 69940

Prime factors of 69940 are 2, 5, 13, 269. Prime factorization of 69940 in exponential form is:

69940 = 22 × 51 × 131 × 2691

Prime Factorization of 69946

Prime factors of 69946 are 2, 41, 853. Prime factorization of 69946 in exponential form is:

69946 = 21 × 411 × 8531

Now multiplying the highest exponent prime factors to calculate the LCM of 69940 and 69946.

LCM(69940,69946) = 22 × 51 × 131 × 2691 × 411 × 8531
LCM(69940,69946) = 2446011620