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What is the Least Common Multiple of 16415 and 16421?

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 16415 and 16421 is 269550715.

LCM(16415,16421) = 269550715

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Least Common Multiple of 16415 and 16421 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 16415 and 16421, than apply into the LCM equation.

GCF(16415,16421) = 1
LCM(16415,16421) = ( 16415 × 16421) / 1
LCM(16415,16421) = 269550715 / 1
LCM(16415,16421) = 269550715

Least Common Multiple (LCM) of 16415 and 16421 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 16415 and 16421. First we will calculate the prime factors of 16415 and 16421.

Prime Factorization of 16415

Prime factors of 16415 are 5, 7, 67. Prime factorization of 16415 in exponential form is:

16415 = 51 × 72 × 671

Prime Factorization of 16421

Prime factors of 16421 are 16421. Prime factorization of 16421 in exponential form is:

16421 = 164211

Now multiplying the highest exponent prime factors to calculate the LCM of 16415 and 16421.

LCM(16415,16421) = 51 × 72 × 671 × 164211
LCM(16415,16421) = 269550715