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What is the Least Common Multiple of 83703 and 83720?

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 83703 and 83720 is 7007615160.

LCM(83703,83720) = 7007615160

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Least Common Multiple of 83703 and 83720 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 83703 and 83720, than apply into the LCM equation.

GCF(83703,83720) = 1
LCM(83703,83720) = ( 83703 × 83720) / 1
LCM(83703,83720) = 7007615160 / 1
LCM(83703,83720) = 7007615160

Least Common Multiple (LCM) of 83703 and 83720 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 83703 and 83720. First we will calculate the prime factors of 83703 and 83720.

Prime Factorization of 83703

Prime factors of 83703 are 3, 27901. Prime factorization of 83703 in exponential form is:

83703 = 31 × 279011

Prime Factorization of 83720

Prime factors of 83720 are 2, 5, 7, 13, 23. Prime factorization of 83720 in exponential form is:

83720 = 23 × 51 × 71 × 131 × 231

Now multiplying the highest exponent prime factors to calculate the LCM of 83703 and 83720.

LCM(83703,83720) = 31 × 279011 × 23 × 51 × 71 × 131 × 231
LCM(83703,83720) = 7007615160