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What is the Least Common Multiple of 40492 and 40505?

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 40492 and 40505 is 1640128460.

LCM(40492,40505) = 1640128460

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Least Common Multiple of 40492 and 40505 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40492 and 40505, than apply into the LCM equation.

GCF(40492,40505) = 1
LCM(40492,40505) = ( 40492 × 40505) / 1
LCM(40492,40505) = 1640128460 / 1
LCM(40492,40505) = 1640128460

Least Common Multiple (LCM) of 40492 and 40505 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40492 and 40505. First we will calculate the prime factors of 40492 and 40505.

Prime Factorization of 40492

Prime factors of 40492 are 2, 53, 191. Prime factorization of 40492 in exponential form is:

40492 = 22 × 531 × 1911

Prime Factorization of 40505

Prime factors of 40505 are 5, 8101. Prime factorization of 40505 in exponential form is:

40505 = 51 × 81011

Now multiplying the highest exponent prime factors to calculate the LCM of 40492 and 40505.

LCM(40492,40505) = 22 × 531 × 1911 × 51 × 81011
LCM(40492,40505) = 1640128460