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What is the Least Common Multiple of 68664 and 68668?

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 68664 and 68668 is 1178754888.

LCM(68664,68668) = 1178754888

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Least Common Multiple of 68664 and 68668 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68664 and 68668, than apply into the LCM equation.

GCF(68664,68668) = 4
LCM(68664,68668) = ( 68664 × 68668) / 4
LCM(68664,68668) = 4715019552 / 4
LCM(68664,68668) = 1178754888

Least Common Multiple (LCM) of 68664 and 68668 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68664 and 68668. First we will calculate the prime factors of 68664 and 68668.

Prime Factorization of 68664

Prime factors of 68664 are 2, 3, 2861. Prime factorization of 68664 in exponential form is:

68664 = 23 × 31 × 28611

Prime Factorization of 68668

Prime factors of 68668 are 2, 17167. Prime factorization of 68668 in exponential form is:

68668 = 22 × 171671

Now multiplying the highest exponent prime factors to calculate the LCM of 68664 and 68668.

LCM(68664,68668) = 23 × 31 × 28611 × 171671
LCM(68664,68668) = 1178754888