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What is the Least Common Multiple of 3950 and 3956?

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 3950 and 3956 is 7813100.

LCM(3950,3956) = 7813100

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Least Common Multiple of 3950 and 3956 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3950 and 3956, than apply into the LCM equation.

GCF(3950,3956) = 2
LCM(3950,3956) = ( 3950 × 3956) / 2
LCM(3950,3956) = 15626200 / 2
LCM(3950,3956) = 7813100

Least Common Multiple (LCM) of 3950 and 3956 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 3950 and 3956. First we will calculate the prime factors of 3950 and 3956.

Prime Factorization of 3950

Prime factors of 3950 are 2, 5, 79. Prime factorization of 3950 in exponential form is:

3950 = 21 × 52 × 791

Prime Factorization of 3956

Prime factors of 3956 are 2, 23, 43. Prime factorization of 3956 in exponential form is:

3956 = 22 × 231 × 431

Now multiplying the highest exponent prime factors to calculate the LCM of 3950 and 3956.

LCM(3950,3956) = 22 × 52 × 791 × 231 × 431
LCM(3950,3956) = 7813100