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What is the Least Common Multiple of 77718 and 77730?

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 77718 and 77730 is 1006836690.

LCM(77718,77730) = 1006836690

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Least Common Multiple of 77718 and 77730 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77718 and 77730, than apply into the LCM equation.

GCF(77718,77730) = 6
LCM(77718,77730) = ( 77718 × 77730) / 6
LCM(77718,77730) = 6041020140 / 6
LCM(77718,77730) = 1006836690

Least Common Multiple (LCM) of 77718 and 77730 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77718 and 77730. First we will calculate the prime factors of 77718 and 77730.

Prime Factorization of 77718

Prime factors of 77718 are 2, 3, 12953. Prime factorization of 77718 in exponential form is:

77718 = 21 × 31 × 129531

Prime Factorization of 77730

Prime factors of 77730 are 2, 3, 5, 2591. Prime factorization of 77730 in exponential form is:

77730 = 21 × 31 × 51 × 25911

Now multiplying the highest exponent prime factors to calculate the LCM of 77718 and 77730.

LCM(77718,77730) = 21 × 31 × 129531 × 51 × 25911
LCM(77718,77730) = 1006836690