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What is the Least Common Multiple of 20497 and 20514?

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 20497 and 20514 is 420475458.

LCM(20497,20514) = 420475458

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Least Common Multiple of 20497 and 20514 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20497 and 20514, than apply into the LCM equation.

GCF(20497,20514) = 1
LCM(20497,20514) = ( 20497 × 20514) / 1
LCM(20497,20514) = 420475458 / 1
LCM(20497,20514) = 420475458

Least Common Multiple (LCM) of 20497 and 20514 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20497 and 20514. First we will calculate the prime factors of 20497 and 20514.

Prime Factorization of 20497

Prime factors of 20497 are 103, 199. Prime factorization of 20497 in exponential form is:

20497 = 1031 × 1991

Prime Factorization of 20514

Prime factors of 20514 are 2, 3, 13, 263. Prime factorization of 20514 in exponential form is:

20514 = 21 × 31 × 131 × 2631

Now multiplying the highest exponent prime factors to calculate the LCM of 20497 and 20514.

LCM(20497,20514) = 1031 × 1991 × 21 × 31 × 131 × 2631
LCM(20497,20514) = 420475458