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What is the Least Common Multiple of 40540 and 40551?

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 40540 and 40551 is 1643937540.

LCM(40540,40551) = 1643937540

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Least Common Multiple of 40540 and 40551 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40540 and 40551, than apply into the LCM equation.

GCF(40540,40551) = 1
LCM(40540,40551) = ( 40540 × 40551) / 1
LCM(40540,40551) = 1643937540 / 1
LCM(40540,40551) = 1643937540

Least Common Multiple (LCM) of 40540 and 40551 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40540 and 40551. First we will calculate the prime factors of 40540 and 40551.

Prime Factorization of 40540

Prime factors of 40540 are 2, 5, 2027. Prime factorization of 40540 in exponential form is:

40540 = 22 × 51 × 20271

Prime Factorization of 40551

Prime factors of 40551 are 3, 7, 1931. Prime factorization of 40551 in exponential form is:

40551 = 31 × 71 × 19311

Now multiplying the highest exponent prime factors to calculate the LCM of 40540 and 40551.

LCM(40540,40551) = 22 × 51 × 20271 × 31 × 71 × 19311
LCM(40540,40551) = 1643937540