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What is the Least Common Multiple of 25216 and 25221?

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 25216 and 25221 is 635972736.

LCM(25216,25221) = 635972736

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Least Common Multiple of 25216 and 25221 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 25216 and 25221, than apply into the LCM equation.

GCF(25216,25221) = 1
LCM(25216,25221) = ( 25216 × 25221) / 1
LCM(25216,25221) = 635972736 / 1
LCM(25216,25221) = 635972736

Least Common Multiple (LCM) of 25216 and 25221 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 25216 and 25221. First we will calculate the prime factors of 25216 and 25221.

Prime Factorization of 25216

Prime factors of 25216 are 2, 197. Prime factorization of 25216 in exponential form is:

25216 = 27 × 1971

Prime Factorization of 25221

Prime factors of 25221 are 3, 7, 1201. Prime factorization of 25221 in exponential form is:

25221 = 31 × 71 × 12011

Now multiplying the highest exponent prime factors to calculate the LCM of 25216 and 25221.

LCM(25216,25221) = 27 × 1971 × 31 × 71 × 12011
LCM(25216,25221) = 635972736