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What is the Least Common Multiple of 1379 and 1393?

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 1379 and 1393 is 274421.

LCM(1379,1393) = 274421

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Least Common Multiple of 1379 and 1393 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1379 and 1393, than apply into the LCM equation.

GCF(1379,1393) = 7
LCM(1379,1393) = ( 1379 × 1393) / 7
LCM(1379,1393) = 1920947 / 7
LCM(1379,1393) = 274421

Least Common Multiple (LCM) of 1379 and 1393 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1379 and 1393. First we will calculate the prime factors of 1379 and 1393.

Prime Factorization of 1379

Prime factors of 1379 are 7, 197. Prime factorization of 1379 in exponential form is:

1379 = 71 × 1971

Prime Factorization of 1393

Prime factors of 1393 are 7, 199. Prime factorization of 1393 in exponential form is:

1393 = 71 × 1991

Now multiplying the highest exponent prime factors to calculate the LCM of 1379 and 1393.

LCM(1379,1393) = 71 × 1971 × 1991
LCM(1379,1393) = 274421