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What is the Least Common Multiple of 15949 and 15961?

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 15949 and 15961 is 254561989.

LCM(15949,15961) = 254561989

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Least Common Multiple of 15949 and 15961 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 15949 and 15961, than apply into the LCM equation.

GCF(15949,15961) = 1
LCM(15949,15961) = ( 15949 × 15961) / 1
LCM(15949,15961) = 254561989 / 1
LCM(15949,15961) = 254561989

Least Common Multiple (LCM) of 15949 and 15961 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 15949 and 15961. First we will calculate the prime factors of 15949 and 15961.

Prime Factorization of 15949

Prime factors of 15949 are 41, 389. Prime factorization of 15949 in exponential form is:

15949 = 411 × 3891

Prime Factorization of 15961

Prime factors of 15961 are 11, 1451. Prime factorization of 15961 in exponential form is:

15961 = 111 × 14511

Now multiplying the highest exponent prime factors to calculate the LCM of 15949 and 15961.

LCM(15949,15961) = 411 × 3891 × 111 × 14511
LCM(15949,15961) = 254561989