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What is the Least Common Multiple of 40256 and 40265?

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 40256 and 40265 is 1620907840.

LCM(40256,40265) = 1620907840

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Least Common Multiple of 40256 and 40265 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40256 and 40265, than apply into the LCM equation.

GCF(40256,40265) = 1
LCM(40256,40265) = ( 40256 × 40265) / 1
LCM(40256,40265) = 1620907840 / 1
LCM(40256,40265) = 1620907840

Least Common Multiple (LCM) of 40256 and 40265 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40256 and 40265. First we will calculate the prime factors of 40256 and 40265.

Prime Factorization of 40256

Prime factors of 40256 are 2, 17, 37. Prime factorization of 40256 in exponential form is:

40256 = 26 × 171 × 371

Prime Factorization of 40265

Prime factors of 40265 are 5, 8053. Prime factorization of 40265 in exponential form is:

40265 = 51 × 80531

Now multiplying the highest exponent prime factors to calculate the LCM of 40256 and 40265.

LCM(40256,40265) = 26 × 171 × 371 × 51 × 80531
LCM(40256,40265) = 1620907840