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What is the Least Common Multiple of 77605 and 77610?

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 77605 and 77610 is 1204584810.

LCM(77605,77610) = 1204584810

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Least Common Multiple of 77605 and 77610 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77605 and 77610, than apply into the LCM equation.

GCF(77605,77610) = 5
LCM(77605,77610) = ( 77605 × 77610) / 5
LCM(77605,77610) = 6022924050 / 5
LCM(77605,77610) = 1204584810

Least Common Multiple (LCM) of 77605 and 77610 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77605 and 77610. First we will calculate the prime factors of 77605 and 77610.

Prime Factorization of 77605

Prime factors of 77605 are 5, 11, 17, 83. Prime factorization of 77605 in exponential form is:

77605 = 51 × 111 × 171 × 831

Prime Factorization of 77610

Prime factors of 77610 are 2, 3, 5, 13, 199. Prime factorization of 77610 in exponential form is:

77610 = 21 × 31 × 51 × 131 × 1991

Now multiplying the highest exponent prime factors to calculate the LCM of 77605 and 77610.

LCM(77605,77610) = 51 × 111 × 171 × 831 × 21 × 31 × 131 × 1991
LCM(77605,77610) = 1204584810