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What is the Least Common Multiple of 3952 and 3970?

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 3952 and 3970 is 7844720.

LCM(3952,3970) = 7844720

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Least Common Multiple of 3952 and 3970 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3952 and 3970, than apply into the LCM equation.

GCF(3952,3970) = 2
LCM(3952,3970) = ( 3952 × 3970) / 2
LCM(3952,3970) = 15689440 / 2
LCM(3952,3970) = 7844720

Least Common Multiple (LCM) of 3952 and 3970 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3952 and 3970. First we will calculate the prime factors of 3952 and 3970.

Prime Factorization of 3952

Prime factors of 3952 are 2, 13, 19. Prime factorization of 3952 in exponential form is:

3952 = 24 × 131 × 191

Prime Factorization of 3970

Prime factors of 3970 are 2, 5, 397. Prime factorization of 3970 in exponential form is:

3970 = 21 × 51 × 3971

Now multiplying the highest exponent prime factors to calculate the LCM of 3952 and 3970.

LCM(3952,3970) = 24 × 131 × 191 × 51 × 3971
LCM(3952,3970) = 7844720