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What is the Least Common Multiple of 65280 and 65292?

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 65280 and 65292 is 355188480.

LCM(65280,65292) = 355188480

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Least Common Multiple of 65280 and 65292 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 65280 and 65292, than apply into the LCM equation.

GCF(65280,65292) = 12
LCM(65280,65292) = ( 65280 × 65292) / 12
LCM(65280,65292) = 4262261760 / 12
LCM(65280,65292) = 355188480

Least Common Multiple (LCM) of 65280 and 65292 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 65280 and 65292. First we will calculate the prime factors of 65280 and 65292.

Prime Factorization of 65280

Prime factors of 65280 are 2, 3, 5, 17. Prime factorization of 65280 in exponential form is:

65280 = 28 × 31 × 51 × 171

Prime Factorization of 65292

Prime factors of 65292 are 2, 3, 5441. Prime factorization of 65292 in exponential form is:

65292 = 22 × 31 × 54411

Now multiplying the highest exponent prime factors to calculate the LCM of 65280 and 65292.

LCM(65280,65292) = 28 × 31 × 51 × 171 × 54411
LCM(65280,65292) = 355188480