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What is the Least Common Multiple of 7818 and 7822?

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 7818 and 7822 is 30576198.

LCM(7818,7822) = 30576198

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Least Common Multiple of 7818 and 7822 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7818 and 7822, than apply into the LCM equation.

GCF(7818,7822) = 2
LCM(7818,7822) = ( 7818 × 7822) / 2
LCM(7818,7822) = 61152396 / 2
LCM(7818,7822) = 30576198

Least Common Multiple (LCM) of 7818 and 7822 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7818 and 7822. First we will calculate the prime factors of 7818 and 7822.

Prime Factorization of 7818

Prime factors of 7818 are 2, 3, 1303. Prime factorization of 7818 in exponential form is:

7818 = 21 × 31 × 13031

Prime Factorization of 7822

Prime factors of 7822 are 2, 3911. Prime factorization of 7822 in exponential form is:

7822 = 21 × 39111

Now multiplying the highest exponent prime factors to calculate the LCM of 7818 and 7822.

LCM(7818,7822) = 21 × 31 × 13031 × 39111
LCM(7818,7822) = 30576198