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What is the Least Common Multiple of 30942 and 30954?

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 30942 and 30954 is 159629778.

LCM(30942,30954) = 159629778

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Least Common Multiple of 30942 and 30954 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 30942 and 30954, than apply into the LCM equation.

GCF(30942,30954) = 6
LCM(30942,30954) = ( 30942 × 30954) / 6
LCM(30942,30954) = 957778668 / 6
LCM(30942,30954) = 159629778

Least Common Multiple (LCM) of 30942 and 30954 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 30942 and 30954. First we will calculate the prime factors of 30942 and 30954.

Prime Factorization of 30942

Prime factors of 30942 are 2, 3, 191. Prime factorization of 30942 in exponential form is:

30942 = 21 × 34 × 1911

Prime Factorization of 30954

Prime factors of 30954 are 2, 3, 7, 11, 67. Prime factorization of 30954 in exponential form is:

30954 = 21 × 31 × 71 × 111 × 671

Now multiplying the highest exponent prime factors to calculate the LCM of 30942 and 30954.

LCM(30942,30954) = 21 × 34 × 1911 × 71 × 111 × 671
LCM(30942,30954) = 159629778