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What is the Least Common Multiple of 20782 and 20801?

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 20782 and 20801 is 432286382.

LCM(20782,20801) = 432286382

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Least Common Multiple of 20782 and 20801 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 20782 and 20801, than apply into the LCM equation.

GCF(20782,20801) = 1
LCM(20782,20801) = ( 20782 × 20801) / 1
LCM(20782,20801) = 432286382 / 1
LCM(20782,20801) = 432286382

Least Common Multiple (LCM) of 20782 and 20801 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 20782 and 20801. First we will calculate the prime factors of 20782 and 20801.

Prime Factorization of 20782

Prime factors of 20782 are 2, 10391. Prime factorization of 20782 in exponential form is:

20782 = 21 × 103911

Prime Factorization of 20801

Prime factors of 20801 are 11, 31, 61. Prime factorization of 20801 in exponential form is:

20801 = 111 × 311 × 611

Now multiplying the highest exponent prime factors to calculate the LCM of 20782 and 20801.

LCM(20782,20801) = 21 × 103911 × 111 × 311 × 611
LCM(20782,20801) = 432286382