What is the Least Common Multiple of 988 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 988 and 997 is 985036.
LCM(988,997) = 985036
Least Common Multiple of 988 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 988 and 997, than apply into the LCM equation.
GCF(988,997) = 1
LCM(988,997) = ( 988 × 997) / 1
LCM(988,997) = 985036 / 1
LCM(988,997) = 985036
Least Common Multiple (LCM) of 988 and 997 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 988 and 997. First we will calculate the prime factors of 988 and 997.
Prime Factorization of 988
Prime factors of 988 are 2, 13, 19. Prime factorization of 988 in exponential form is:
988 = 22 × 131 × 191
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 988 and 997.
LCM(988,997) = 22 × 131 × 191 × 9971
LCM(988,997) = 985036
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