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What is the Least Common Multiple of 85642 and 85655?

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 85642 and 85655 is 7335665510.

LCM(85642,85655) = 7335665510

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Least Common Multiple of 85642 and 85655 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 85642 and 85655, than apply into the LCM equation.

GCF(85642,85655) = 1
LCM(85642,85655) = ( 85642 × 85655) / 1
LCM(85642,85655) = 7335665510 / 1
LCM(85642,85655) = 7335665510

Least Common Multiple (LCM) of 85642 and 85655 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 85642 and 85655. First we will calculate the prime factors of 85642 and 85655.

Prime Factorization of 85642

Prime factors of 85642 are 2, 42821. Prime factorization of 85642 in exponential form is:

85642 = 21 × 428211

Prime Factorization of 85655

Prime factors of 85655 are 5, 37, 463. Prime factorization of 85655 in exponential form is:

85655 = 51 × 371 × 4631

Now multiplying the highest exponent prime factors to calculate the LCM of 85642 and 85655.

LCM(85642,85655) = 21 × 428211 × 51 × 371 × 4631
LCM(85642,85655) = 7335665510