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What is the Least Common Multiple of 78909 and 78925?

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 78909 and 78925 is 6227892825.

LCM(78909,78925) = 6227892825

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Least Common Multiple of 78909 and 78925 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78909 and 78925, than apply into the LCM equation.

GCF(78909,78925) = 1
LCM(78909,78925) = ( 78909 × 78925) / 1
LCM(78909,78925) = 6227892825 / 1
LCM(78909,78925) = 6227892825

Least Common Multiple (LCM) of 78909 and 78925 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78909 and 78925. First we will calculate the prime factors of 78909 and 78925.

Prime Factorization of 78909

Prime factors of 78909 are 3, 29, 907. Prime factorization of 78909 in exponential form is:

78909 = 31 × 291 × 9071

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

Now multiplying the highest exponent prime factors to calculate the LCM of 78909 and 78925.

LCM(78909,78925) = 31 × 291 × 9071 × 52 × 71 × 111 × 411
LCM(78909,78925) = 6227892825