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What is the Least Common Multiple of 77749 and 77763?

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 77749 and 77763 is 863713641.

LCM(77749,77763) = 863713641

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Least Common Multiple of 77749 and 77763 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77749 and 77763, than apply into the LCM equation.

GCF(77749,77763) = 7
LCM(77749,77763) = ( 77749 × 77763) / 7
LCM(77749,77763) = 6045995487 / 7
LCM(77749,77763) = 863713641

Least Common Multiple (LCM) of 77749 and 77763 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77749 and 77763. First we will calculate the prime factors of 77749 and 77763.

Prime Factorization of 77749

Prime factors of 77749 are 7, 29, 383. Prime factorization of 77749 in exponential form is:

77749 = 71 × 291 × 3831

Prime Factorization of 77763

Prime factors of 77763 are 3, 7, 23. Prime factorization of 77763 in exponential form is:

77763 = 31 × 72 × 232

Now multiplying the highest exponent prime factors to calculate the LCM of 77749 and 77763.

LCM(77749,77763) = 72 × 291 × 3831 × 31 × 232
LCM(77749,77763) = 863713641