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What is the Least Common Multiple of 78948 and 78958?

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 78948 and 78958 is 3116788092.

LCM(78948,78958) = 3116788092

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Least Common Multiple of 78948 and 78958 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78948 and 78958, than apply into the LCM equation.

GCF(78948,78958) = 2
LCM(78948,78958) = ( 78948 × 78958) / 2
LCM(78948,78958) = 6233576184 / 2
LCM(78948,78958) = 3116788092

Least Common Multiple (LCM) of 78948 and 78958 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78948 and 78958. First we will calculate the prime factors of 78948 and 78958.

Prime Factorization of 78948

Prime factors of 78948 are 2, 3, 17, 43. Prime factorization of 78948 in exponential form is:

78948 = 22 × 33 × 171 × 431

Prime Factorization of 78958

Prime factors of 78958 are 2, 11, 37, 97. Prime factorization of 78958 in exponential form is:

78958 = 21 × 111 × 371 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 78948 and 78958.

LCM(78948,78958) = 22 × 33 × 171 × 431 × 111 × 371 × 971
LCM(78948,78958) = 3116788092