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What is the Least Common Multiple of 7942 and 7950?

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 7942 and 7950 is 31569450.

LCM(7942,7950) = 31569450

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Least Common Multiple of 7942 and 7950 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7942 and 7950, than apply into the LCM equation.

GCF(7942,7950) = 2
LCM(7942,7950) = ( 7942 × 7950) / 2
LCM(7942,7950) = 63138900 / 2
LCM(7942,7950) = 31569450

Least Common Multiple (LCM) of 7942 and 7950 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7942 and 7950. First we will calculate the prime factors of 7942 and 7950.

Prime Factorization of 7942

Prime factors of 7942 are 2, 11, 19. Prime factorization of 7942 in exponential form is:

7942 = 21 × 111 × 192

Prime Factorization of 7950

Prime factors of 7950 are 2, 3, 5, 53. Prime factorization of 7950 in exponential form is:

7950 = 21 × 31 × 52 × 531

Now multiplying the highest exponent prime factors to calculate the LCM of 7942 and 7950.

LCM(7942,7950) = 21 × 111 × 192 × 31 × 52 × 531
LCM(7942,7950) = 31569450