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What is the Least Common Multiple of 7178 and 7189?

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 7178 and 7189 is 51602642.

LCM(7178,7189) = 51602642

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Least Common Multiple of 7178 and 7189 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7178 and 7189, than apply into the LCM equation.

GCF(7178,7189) = 1
LCM(7178,7189) = ( 7178 × 7189) / 1
LCM(7178,7189) = 51602642 / 1
LCM(7178,7189) = 51602642

Least Common Multiple (LCM) of 7178 and 7189 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7178 and 7189. First we will calculate the prime factors of 7178 and 7189.

Prime Factorization of 7178

Prime factors of 7178 are 2, 37, 97. Prime factorization of 7178 in exponential form is:

7178 = 21 × 371 × 971

Prime Factorization of 7189

Prime factors of 7189 are 7, 13, 79. Prime factorization of 7189 in exponential form is:

7189 = 71 × 131 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 7178 and 7189.

LCM(7178,7189) = 21 × 371 × 971 × 71 × 131 × 791
LCM(7178,7189) = 51602642