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What is the Least Common Multiple of 51440 and 51451?

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 51440 and 51451 is 2646639440.

LCM(51440,51451) = 2646639440

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Least Common Multiple of 51440 and 51451 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 51440 and 51451, than apply into the LCM equation.

GCF(51440,51451) = 1
LCM(51440,51451) = ( 51440 × 51451) / 1
LCM(51440,51451) = 2646639440 / 1
LCM(51440,51451) = 2646639440

Least Common Multiple (LCM) of 51440 and 51451 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 51440 and 51451. First we will calculate the prime factors of 51440 and 51451.

Prime Factorization of 51440

Prime factors of 51440 are 2, 5, 643. Prime factorization of 51440 in exponential form is:

51440 = 24 × 51 × 6431

Prime Factorization of 51451

Prime factors of 51451 are 23, 2237. Prime factorization of 51451 in exponential form is:

51451 = 231 × 22371

Now multiplying the highest exponent prime factors to calculate the LCM of 51440 and 51451.

LCM(51440,51451) = 24 × 51 × 6431 × 231 × 22371
LCM(51440,51451) = 2646639440