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What is the Least Common Multiple of 8416 and 8436?

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 8416 and 8436 is 17749344.

LCM(8416,8436) = 17749344

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Least Common Multiple of 8416 and 8436 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 8416 and 8436, than apply into the LCM equation.

GCF(8416,8436) = 4
LCM(8416,8436) = ( 8416 × 8436) / 4
LCM(8416,8436) = 70997376 / 4
LCM(8416,8436) = 17749344

Least Common Multiple (LCM) of 8416 and 8436 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 8416 and 8436. First we will calculate the prime factors of 8416 and 8436.

Prime Factorization of 8416

Prime factors of 8416 are 2, 263. Prime factorization of 8416 in exponential form is:

8416 = 25 × 2631

Prime Factorization of 8436

Prime factors of 8436 are 2, 3, 19, 37. Prime factorization of 8436 in exponential form is:

8436 = 22 × 31 × 191 × 371

Now multiplying the highest exponent prime factors to calculate the LCM of 8416 and 8436.

LCM(8416,8436) = 25 × 2631 × 31 × 191 × 371
LCM(8416,8436) = 17749344