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What is the Least Common Multiple of 77644 and 77660?

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 77644 and 77660 is 1507458260.

LCM(77644,77660) = 1507458260

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Least Common Multiple of 77644 and 77660 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77644 and 77660, than apply into the LCM equation.

GCF(77644,77660) = 4
LCM(77644,77660) = ( 77644 × 77660) / 4
LCM(77644,77660) = 6029833040 / 4
LCM(77644,77660) = 1507458260

Least Common Multiple (LCM) of 77644 and 77660 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77644 and 77660. First we will calculate the prime factors of 77644 and 77660.

Prime Factorization of 77644

Prime factors of 77644 are 2, 7, 47, 59. Prime factorization of 77644 in exponential form is:

77644 = 22 × 71 × 471 × 591

Prime Factorization of 77660

Prime factors of 77660 are 2, 5, 11, 353. Prime factorization of 77660 in exponential form is:

77660 = 22 × 51 × 111 × 3531

Now multiplying the highest exponent prime factors to calculate the LCM of 77644 and 77660.

LCM(77644,77660) = 22 × 71 × 471 × 591 × 51 × 111 × 3531
LCM(77644,77660) = 1507458260