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What is the Least Common Multiple of 76540 and 76544?

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 76540 and 76544 is 1464669440.

LCM(76540,76544) = 1464669440

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Least Common Multiple of 76540 and 76544 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 76540 and 76544, than apply into the LCM equation.

GCF(76540,76544) = 4
LCM(76540,76544) = ( 76540 × 76544) / 4
LCM(76540,76544) = 5858677760 / 4
LCM(76540,76544) = 1464669440

Least Common Multiple (LCM) of 76540 and 76544 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 76540 and 76544. First we will calculate the prime factors of 76540 and 76544.

Prime Factorization of 76540

Prime factors of 76540 are 2, 5, 43, 89. Prime factorization of 76540 in exponential form is:

76540 = 22 × 51 × 431 × 891

Prime Factorization of 76544

Prime factors of 76544 are 2, 13, 23. Prime factorization of 76544 in exponential form is:

76544 = 28 × 131 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 76540 and 76544.

LCM(76540,76544) = 28 × 51 × 431 × 891 × 131 × 231
LCM(76540,76544) = 1464669440