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What is the Least Common Multiple of 87658 and 87668?

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 87658 and 87668 is 3842400772.

LCM(87658,87668) = 3842400772

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Least Common Multiple of 87658 and 87668 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87658 and 87668, than apply into the LCM equation.

GCF(87658,87668) = 2
LCM(87658,87668) = ( 87658 × 87668) / 2
LCM(87658,87668) = 7684801544 / 2
LCM(87658,87668) = 3842400772

Least Common Multiple (LCM) of 87658 and 87668 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87658 and 87668. First we will calculate the prime factors of 87658 and 87668.

Prime Factorization of 87658

Prime factors of 87658 are 2, 41, 1069. Prime factorization of 87658 in exponential form is:

87658 = 21 × 411 × 10691

Prime Factorization of 87668

Prime factors of 87668 are 2, 7, 31, 101. Prime factorization of 87668 in exponential form is:

87668 = 22 × 71 × 311 × 1011

Now multiplying the highest exponent prime factors to calculate the LCM of 87658 and 87668.

LCM(87658,87668) = 22 × 411 × 10691 × 71 × 311 × 1011
LCM(87658,87668) = 3842400772