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What is the Least Common Multiple of 21950 and 21957?

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 21950 and 21957 is 481956150.

LCM(21950,21957) = 481956150

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Least Common Multiple of 21950 and 21957 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21950 and 21957, than apply into the LCM equation.

GCF(21950,21957) = 1
LCM(21950,21957) = ( 21950 × 21957) / 1
LCM(21950,21957) = 481956150 / 1
LCM(21950,21957) = 481956150

Least Common Multiple (LCM) of 21950 and 21957 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21950 and 21957. First we will calculate the prime factors of 21950 and 21957.

Prime Factorization of 21950

Prime factors of 21950 are 2, 5, 439. Prime factorization of 21950 in exponential form is:

21950 = 21 × 52 × 4391

Prime Factorization of 21957

Prime factors of 21957 are 3, 13, 563. Prime factorization of 21957 in exponential form is:

21957 = 31 × 131 × 5631

Now multiplying the highest exponent prime factors to calculate the LCM of 21950 and 21957.

LCM(21950,21957) = 21 × 52 × 4391 × 31 × 131 × 5631
LCM(21950,21957) = 481956150