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What is the Least Common Multiple of 72435 and 72454?

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 72435 and 72454 is 5248205490.

LCM(72435,72454) = 5248205490

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Least Common Multiple of 72435 and 72454 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 72435 and 72454, than apply into the LCM equation.

GCF(72435,72454) = 1
LCM(72435,72454) = ( 72435 × 72454) / 1
LCM(72435,72454) = 5248205490 / 1
LCM(72435,72454) = 5248205490

Least Common Multiple (LCM) of 72435 and 72454 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 72435 and 72454. First we will calculate the prime factors of 72435 and 72454.

Prime Factorization of 72435

Prime factors of 72435 are 3, 5, 11, 439. Prime factorization of 72435 in exponential form is:

72435 = 31 × 51 × 111 × 4391

Prime Factorization of 72454

Prime factors of 72454 are 2, 17, 2131. Prime factorization of 72454 in exponential form is:

72454 = 21 × 171 × 21311

Now multiplying the highest exponent prime factors to calculate the LCM of 72435 and 72454.

LCM(72435,72454) = 31 × 51 × 111 × 4391 × 21 × 171 × 21311
LCM(72435,72454) = 5248205490