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What is the Least Common Multiple of 79540 and 79544?

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 79540 and 79544 is 1581732440.

LCM(79540,79544) = 1581732440

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Least Common Multiple of 79540 and 79544 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79540 and 79544, than apply into the LCM equation.

GCF(79540,79544) = 4
LCM(79540,79544) = ( 79540 × 79544) / 4
LCM(79540,79544) = 6326929760 / 4
LCM(79540,79544) = 1581732440

Least Common Multiple (LCM) of 79540 and 79544 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79540 and 79544. First we will calculate the prime factors of 79540 and 79544.

Prime Factorization of 79540

Prime factors of 79540 are 2, 5, 41, 97. Prime factorization of 79540 in exponential form is:

79540 = 22 × 51 × 411 × 971

Prime Factorization of 79544

Prime factors of 79544 are 2, 61, 163. Prime factorization of 79544 in exponential form is:

79544 = 23 × 611 × 1631

Now multiplying the highest exponent prime factors to calculate the LCM of 79540 and 79544.

LCM(79540,79544) = 23 × 51 × 411 × 971 × 611 × 1631
LCM(79540,79544) = 1581732440