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What is the Least Common Multiple of 78453 and 78460?

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 78453 and 78460 is 6155422380.

LCM(78453,78460) = 6155422380

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Least Common Multiple of 78453 and 78460 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78453 and 78460, than apply into the LCM equation.

GCF(78453,78460) = 1
LCM(78453,78460) = ( 78453 × 78460) / 1
LCM(78453,78460) = 6155422380 / 1
LCM(78453,78460) = 6155422380

Least Common Multiple (LCM) of 78453 and 78460 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78453 and 78460. First we will calculate the prime factors of 78453 and 78460.

Prime Factorization of 78453

Prime factors of 78453 are 3, 23, 379. Prime factorization of 78453 in exponential form is:

78453 = 32 × 231 × 3791

Prime Factorization of 78460

Prime factors of 78460 are 2, 5, 3923. Prime factorization of 78460 in exponential form is:

78460 = 22 × 51 × 39231

Now multiplying the highest exponent prime factors to calculate the LCM of 78453 and 78460.

LCM(78453,78460) = 32 × 231 × 3791 × 22 × 51 × 39231
LCM(78453,78460) = 6155422380