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What is the Least Common Multiple of 67639 and 67658?

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 67639 and 67658 is 4576319462.

LCM(67639,67658) = 4576319462

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Least Common Multiple of 67639 and 67658 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 67639 and 67658, than apply into the LCM equation.

GCF(67639,67658) = 1
LCM(67639,67658) = ( 67639 × 67658) / 1
LCM(67639,67658) = 4576319462 / 1
LCM(67639,67658) = 4576319462

Least Common Multiple (LCM) of 67639 and 67658 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 67639 and 67658. First we will calculate the prime factors of 67639 and 67658.

Prime Factorization of 67639

Prime factors of 67639 are 11, 13, 43. Prime factorization of 67639 in exponential form is:

67639 = 112 × 131 × 431

Prime Factorization of 67658

Prime factors of 67658 are 2, 33829. Prime factorization of 67658 in exponential form is:

67658 = 21 × 338291

Now multiplying the highest exponent prime factors to calculate the LCM of 67639 and 67658.

LCM(67639,67658) = 112 × 131 × 431 × 21 × 338291
LCM(67639,67658) = 4576319462