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What is the Least Common Multiple of 74284 and 74292?

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 74284 and 74292 is 1379676732.

LCM(74284,74292) = 1379676732

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Least Common Multiple of 74284 and 74292 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74284 and 74292, than apply into the LCM equation.

GCF(74284,74292) = 4
LCM(74284,74292) = ( 74284 × 74292) / 4
LCM(74284,74292) = 5518706928 / 4
LCM(74284,74292) = 1379676732

Least Common Multiple (LCM) of 74284 and 74292 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74284 and 74292. First we will calculate the prime factors of 74284 and 74292.

Prime Factorization of 74284

Prime factors of 74284 are 2, 7, 379. Prime factorization of 74284 in exponential form is:

74284 = 22 × 72 × 3791

Prime Factorization of 74292

Prime factors of 74292 are 2, 3, 41, 151. Prime factorization of 74292 in exponential form is:

74292 = 22 × 31 × 411 × 1511

Now multiplying the highest exponent prime factors to calculate the LCM of 74284 and 74292.

LCM(74284,74292) = 22 × 72 × 3791 × 31 × 411 × 1511
LCM(74284,74292) = 1379676732