What is the Least Common Multiple of 986 and 997?
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 986 and 997 is 983042.
LCM(986,997) = 983042
Least Common Multiple of 986 and 997 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 986 and 997, than apply into the LCM equation.
GCF(986,997) = 1
LCM(986,997) = ( 986 × 997) / 1
LCM(986,997) = 983042 / 1
LCM(986,997) = 983042
Least Common Multiple (LCM) of 986 and 997 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 986 and 997. First we will calculate the prime factors of 986 and 997.
Prime Factorization of 986
Prime factors of 986 are 2, 17, 29. Prime factorization of 986 in exponential form is:
986 = 21 × 171 × 291
Prime Factorization of 997
Prime factors of 997 are 997. Prime factorization of 997 in exponential form is:
997 = 9971
Now multiplying the highest exponent prime factors to calculate the LCM of 986 and 997.
LCM(986,997) = 21 × 171 × 291 × 9971
LCM(986,997) = 983042
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