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What is the Least Common Multiple of 87982 and 87991?

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 87982 and 87991 is 7741624162.

LCM(87982,87991) = 7741624162

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Least Common Multiple of 87982 and 87991 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 87982 and 87991, than apply into the LCM equation.

GCF(87982,87991) = 1
LCM(87982,87991) = ( 87982 × 87991) / 1
LCM(87982,87991) = 7741624162 / 1
LCM(87982,87991) = 7741624162

Least Common Multiple (LCM) of 87982 and 87991 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 87982 and 87991. First we will calculate the prime factors of 87982 and 87991.

Prime Factorization of 87982

Prime factors of 87982 are 2, 43991. Prime factorization of 87982 in exponential form is:

87982 = 21 × 439911

Prime Factorization of 87991

Prime factors of 87991 are 87991. Prime factorization of 87991 in exponential form is:

87991 = 879911

Now multiplying the highest exponent prime factors to calculate the LCM of 87982 and 87991.

LCM(87982,87991) = 21 × 439911 × 879911
LCM(87982,87991) = 7741624162