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What is the Least Common Multiple of 79460 and 79472?

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 79460 and 79472 is 1578711280.

LCM(79460,79472) = 1578711280

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Least Common Multiple of 79460 and 79472 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79460 and 79472, than apply into the LCM equation.

GCF(79460,79472) = 4
LCM(79460,79472) = ( 79460 × 79472) / 4
LCM(79460,79472) = 6314845120 / 4
LCM(79460,79472) = 1578711280

Least Common Multiple (LCM) of 79460 and 79472 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79460 and 79472. First we will calculate the prime factors of 79460 and 79472.

Prime Factorization of 79460

Prime factors of 79460 are 2, 5, 29, 137. Prime factorization of 79460 in exponential form is:

79460 = 22 × 51 × 291 × 1371

Prime Factorization of 79472

Prime factors of 79472 are 2, 4967. Prime factorization of 79472 in exponential form is:

79472 = 24 × 49671

Now multiplying the highest exponent prime factors to calculate the LCM of 79460 and 79472.

LCM(79460,79472) = 24 × 51 × 291 × 1371 × 49671
LCM(79460,79472) = 1578711280