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What is the Least Common Multiple of 7491 and 7506?

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 7491 and 7506 is 18742482.

LCM(7491,7506) = 18742482

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Least Common Multiple of 7491 and 7506 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7491 and 7506, than apply into the LCM equation.

GCF(7491,7506) = 3
LCM(7491,7506) = ( 7491 × 7506) / 3
LCM(7491,7506) = 56227446 / 3
LCM(7491,7506) = 18742482

Least Common Multiple (LCM) of 7491 and 7506 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7491 and 7506. First we will calculate the prime factors of 7491 and 7506.

Prime Factorization of 7491

Prime factors of 7491 are 3, 11, 227. Prime factorization of 7491 in exponential form is:

7491 = 31 × 111 × 2271

Prime Factorization of 7506

Prime factors of 7506 are 2, 3, 139. Prime factorization of 7506 in exponential form is:

7506 = 21 × 33 × 1391

Now multiplying the highest exponent prime factors to calculate the LCM of 7491 and 7506.

LCM(7491,7506) = 33 × 111 × 2271 × 21 × 1391
LCM(7491,7506) = 18742482