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What is the Least Common Multiple of 21910 and 21919?

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 21910 and 21919 is 480245290.

LCM(21910,21919) = 480245290

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Least Common Multiple of 21910 and 21919 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21910 and 21919, than apply into the LCM equation.

GCF(21910,21919) = 1
LCM(21910,21919) = ( 21910 × 21919) / 1
LCM(21910,21919) = 480245290 / 1
LCM(21910,21919) = 480245290

Least Common Multiple (LCM) of 21910 and 21919 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21910 and 21919. First we will calculate the prime factors of 21910 and 21919.

Prime Factorization of 21910

Prime factors of 21910 are 2, 5, 7, 313. Prime factorization of 21910 in exponential form is:

21910 = 21 × 51 × 71 × 3131

Prime Factorization of 21919

Prime factors of 21919 are 23, 953. Prime factorization of 21919 in exponential form is:

21919 = 231 × 9531

Now multiplying the highest exponent prime factors to calculate the LCM of 21910 and 21919.

LCM(21910,21919) = 21 × 51 × 71 × 3131 × 231 × 9531
LCM(21910,21919) = 480245290