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What is the Least Common Multiple of 11913 and 11931?

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 11913 and 11931 is 47378001.

LCM(11913,11931) = 47378001

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Least Common Multiple of 11913 and 11931 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 11913 and 11931, than apply into the LCM equation.

GCF(11913,11931) = 3
LCM(11913,11931) = ( 11913 × 11931) / 3
LCM(11913,11931) = 142134003 / 3
LCM(11913,11931) = 47378001

Least Common Multiple (LCM) of 11913 and 11931 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 11913 and 11931. First we will calculate the prime factors of 11913 and 11931.

Prime Factorization of 11913

Prime factors of 11913 are 3, 11, 19. Prime factorization of 11913 in exponential form is:

11913 = 31 × 111 × 192

Prime Factorization of 11931

Prime factors of 11931 are 3, 41, 97. Prime factorization of 11931 in exponential form is:

11931 = 31 × 411 × 971

Now multiplying the highest exponent prime factors to calculate the LCM of 11913 and 11931.

LCM(11913,11931) = 31 × 111 × 192 × 411 × 971
LCM(11913,11931) = 47378001