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What is the Least Common Multiple of 78925 and 78939?

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 78925 and 78939 is 890037225.

LCM(78925,78939) = 890037225

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Least Common Multiple of 78925 and 78939 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78925 and 78939, than apply into the LCM equation.

GCF(78925,78939) = 7
LCM(78925,78939) = ( 78925 × 78939) / 7
LCM(78925,78939) = 6230260575 / 7
LCM(78925,78939) = 890037225

Least Common Multiple (LCM) of 78925 and 78939 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78925 and 78939. First we will calculate the prime factors of 78925 and 78939.

Prime Factorization of 78925

Prime factors of 78925 are 5, 7, 11, 41. Prime factorization of 78925 in exponential form is:

78925 = 52 × 71 × 111 × 411

Prime Factorization of 78939

Prime factors of 78939 are 3, 7, 179. Prime factorization of 78939 in exponential form is:

78939 = 32 × 72 × 1791

Now multiplying the highest exponent prime factors to calculate the LCM of 78925 and 78939.

LCM(78925,78939) = 52 × 72 × 111 × 411 × 32 × 1791
LCM(78925,78939) = 890037225