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What is the Least Common Multiple of 74524 and 74540?

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 74524 and 74540 is 1388754740.

LCM(74524,74540) = 1388754740

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Least Common Multiple of 74524 and 74540 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74524 and 74540, than apply into the LCM equation.

GCF(74524,74540) = 4
LCM(74524,74540) = ( 74524 × 74540) / 4
LCM(74524,74540) = 5555018960 / 4
LCM(74524,74540) = 1388754740

Least Common Multiple (LCM) of 74524 and 74540 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74524 and 74540. First we will calculate the prime factors of 74524 and 74540.

Prime Factorization of 74524

Prime factors of 74524 are 2, 31, 601. Prime factorization of 74524 in exponential form is:

74524 = 22 × 311 × 6011

Prime Factorization of 74540

Prime factors of 74540 are 2, 5, 3727. Prime factorization of 74540 in exponential form is:

74540 = 22 × 51 × 37271

Now multiplying the highest exponent prime factors to calculate the LCM of 74524 and 74540.

LCM(74524,74540) = 22 × 311 × 6011 × 51 × 37271
LCM(74524,74540) = 1388754740