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What is the Least Common Multiple of 7830 and 7836?

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 7830 and 7836 is 10225980.

LCM(7830,7836) = 10225980

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Least Common Multiple of 7830 and 7836 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7830 and 7836, than apply into the LCM equation.

GCF(7830,7836) = 6
LCM(7830,7836) = ( 7830 × 7836) / 6
LCM(7830,7836) = 61355880 / 6
LCM(7830,7836) = 10225980

Least Common Multiple (LCM) of 7830 and 7836 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7830 and 7836. First we will calculate the prime factors of 7830 and 7836.

Prime Factorization of 7830

Prime factors of 7830 are 2, 3, 5, 29. Prime factorization of 7830 in exponential form is:

7830 = 21 × 33 × 51 × 291

Prime Factorization of 7836

Prime factors of 7836 are 2, 3, 653. Prime factorization of 7836 in exponential form is:

7836 = 22 × 31 × 6531

Now multiplying the highest exponent prime factors to calculate the LCM of 7830 and 7836.

LCM(7830,7836) = 22 × 33 × 51 × 291 × 6531
LCM(7830,7836) = 10225980