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What is the Least Common Multiple of 77865 and 77870?

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 77865 and 77870 is 1212669510.

LCM(77865,77870) = 1212669510

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Least Common Multiple of 77865 and 77870 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 77865 and 77870, than apply into the LCM equation.

GCF(77865,77870) = 5
LCM(77865,77870) = ( 77865 × 77870) / 5
LCM(77865,77870) = 6063347550 / 5
LCM(77865,77870) = 1212669510

Least Common Multiple (LCM) of 77865 and 77870 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 77865 and 77870. First we will calculate the prime factors of 77865 and 77870.

Prime Factorization of 77865

Prime factors of 77865 are 3, 5, 29, 179. Prime factorization of 77865 in exponential form is:

77865 = 31 × 51 × 291 × 1791

Prime Factorization of 77870

Prime factors of 77870 are 2, 5, 13, 599. Prime factorization of 77870 in exponential form is:

77870 = 21 × 51 × 131 × 5991

Now multiplying the highest exponent prime factors to calculate the LCM of 77865 and 77870.

LCM(77865,77870) = 31 × 51 × 291 × 1791 × 21 × 131 × 5991
LCM(77865,77870) = 1212669510