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What is the Least Common Multiple of 83538 and 83556?

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 83538 and 83556 is 387783396.

LCM(83538,83556) = 387783396

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Least Common Multiple of 83538 and 83556 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 83538 and 83556, than apply into the LCM equation.

GCF(83538,83556) = 18
LCM(83538,83556) = ( 83538 × 83556) / 18
LCM(83538,83556) = 6980101128 / 18
LCM(83538,83556) = 387783396

Least Common Multiple (LCM) of 83538 and 83556 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 83538 and 83556. First we will calculate the prime factors of 83538 and 83556.

Prime Factorization of 83538

Prime factors of 83538 are 2, 3, 7, 13, 17. Prime factorization of 83538 in exponential form is:

83538 = 21 × 33 × 71 × 131 × 171

Prime Factorization of 83556

Prime factors of 83556 are 2, 3, 11, 211. Prime factorization of 83556 in exponential form is:

83556 = 22 × 32 × 111 × 2111

Now multiplying the highest exponent prime factors to calculate the LCM of 83538 and 83556.

LCM(83538,83556) = 22 × 33 × 71 × 131 × 171 × 111 × 2111
LCM(83538,83556) = 387783396