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What is the Least Common Multiple of 21241 and 21261?

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 21241 and 21261 is 451604901.

LCM(21241,21261) = 451604901

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Least Common Multiple of 21241 and 21261 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21241 and 21261, than apply into the LCM equation.

GCF(21241,21261) = 1
LCM(21241,21261) = ( 21241 × 21261) / 1
LCM(21241,21261) = 451604901 / 1
LCM(21241,21261) = 451604901

Least Common Multiple (LCM) of 21241 and 21261 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21241 and 21261. First we will calculate the prime factors of 21241 and 21261.

Prime Factorization of 21241

Prime factors of 21241 are 11, 1931. Prime factorization of 21241 in exponential form is:

21241 = 111 × 19311

Prime Factorization of 21261

Prime factors of 21261 are 3, 19, 373. Prime factorization of 21261 in exponential form is:

21261 = 31 × 191 × 3731

Now multiplying the highest exponent prime factors to calculate the LCM of 21241 and 21261.

LCM(21241,21261) = 111 × 19311 × 31 × 191 × 3731
LCM(21241,21261) = 451604901