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What is the Least Common Multiple of 3962 and 3981?

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 3962 and 3981 is 15772722.

LCM(3962,3981) = 15772722

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Least Common Multiple of 3962 and 3981 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3962 and 3981, than apply into the LCM equation.

GCF(3962,3981) = 1
LCM(3962,3981) = ( 3962 × 3981) / 1
LCM(3962,3981) = 15772722 / 1
LCM(3962,3981) = 15772722

Least Common Multiple (LCM) of 3962 and 3981 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3962 and 3981. First we will calculate the prime factors of 3962 and 3981.

Prime Factorization of 3962

Prime factors of 3962 are 2, 7, 283. Prime factorization of 3962 in exponential form is:

3962 = 21 × 71 × 2831

Prime Factorization of 3981

Prime factors of 3981 are 3, 1327. Prime factorization of 3981 in exponential form is:

3981 = 31 × 13271

Now multiplying the highest exponent prime factors to calculate the LCM of 3962 and 3981.

LCM(3962,3981) = 21 × 71 × 2831 × 31 × 13271
LCM(3962,3981) = 15772722