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What is the Least Common Multiple of 40986 and 40991?

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 40986 and 40991 is 1680057126.

LCM(40986,40991) = 1680057126

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Least Common Multiple of 40986 and 40991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 40986 and 40991, than apply into the LCM equation.

GCF(40986,40991) = 1
LCM(40986,40991) = ( 40986 × 40991) / 1
LCM(40986,40991) = 1680057126 / 1
LCM(40986,40991) = 1680057126

Least Common Multiple (LCM) of 40986 and 40991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 40986 and 40991. First we will calculate the prime factors of 40986 and 40991.

Prime Factorization of 40986

Prime factors of 40986 are 2, 3, 11, 23. Prime factorization of 40986 in exponential form is:

40986 = 21 × 34 × 111 × 231

Prime Factorization of 40991

Prime factors of 40991 are 179, 229. Prime factorization of 40991 in exponential form is:

40991 = 1791 × 2291

Now multiplying the highest exponent prime factors to calculate the LCM of 40986 and 40991.

LCM(40986,40991) = 21 × 34 × 111 × 231 × 1791 × 2291
LCM(40986,40991) = 1680057126