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What is the Least Common Multiple of 20253 and 20265?

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 20253 and 20265 is 136809015.

LCM(20253,20265) = 136809015

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Least Common Multiple of 20253 and 20265 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20253 and 20265, than apply into the LCM equation.

GCF(20253,20265) = 3
LCM(20253,20265) = ( 20253 × 20265) / 3
LCM(20253,20265) = 410427045 / 3
LCM(20253,20265) = 136809015

Least Common Multiple (LCM) of 20253 and 20265 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20253 and 20265. First we will calculate the prime factors of 20253 and 20265.

Prime Factorization of 20253

Prime factors of 20253 are 3, 43, 157. Prime factorization of 20253 in exponential form is:

20253 = 31 × 431 × 1571

Prime Factorization of 20265

Prime factors of 20265 are 3, 5, 7, 193. Prime factorization of 20265 in exponential form is:

20265 = 31 × 51 × 71 × 1931

Now multiplying the highest exponent prime factors to calculate the LCM of 20253 and 20265.

LCM(20253,20265) = 31 × 431 × 1571 × 51 × 71 × 1931
LCM(20253,20265) = 136809015