What is the Least Common Multiple of 989 and 996?
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 989 and 996 is 985044.
LCM(989,996) = 985044
Least Common Multiple of 989 and 996 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 989 and 996, than apply into the LCM equation.
GCF(989,996) = 1
LCM(989,996) = ( 989 × 996) / 1
LCM(989,996) = 985044 / 1
LCM(989,996) = 985044
Least Common Multiple (LCM) of 989 and 996 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 989 and 996. First we will calculate the prime factors of 989 and 996.
Prime Factorization of 989
Prime factors of 989 are 23, 43. Prime factorization of 989 in exponential form is:
989 = 231 × 431
Prime Factorization of 996
Prime factors of 996 are 2, 3, 83. Prime factorization of 996 in exponential form is:
996 = 22 × 31 × 831
Now multiplying the highest exponent prime factors to calculate the LCM of 989 and 996.
LCM(989,996) = 231 × 431 × 22 × 31 × 831
LCM(989,996) = 985044
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