What is the Least Common Multiple of 999 and 1003?
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 999 and 1003 is 1001997.
LCM(999,1003) = 1001997
Least Common Multiple of 999 and 1003 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 999 and 1003, than apply into the LCM equation.
GCF(999,1003) = 1
LCM(999,1003) = ( 999 × 1003) / 1
LCM(999,1003) = 1001997 / 1
LCM(999,1003) = 1001997
Least Common Multiple (LCM) of 999 and 1003 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 999 and 1003. First we will calculate the prime factors of 999 and 1003.
Prime Factorization of 999
Prime factors of 999 are 3, 37. Prime factorization of 999 in exponential form is:
999 = 33 × 371
Prime Factorization of 1003
Prime factors of 1003 are 17, 59. Prime factorization of 1003 in exponential form is:
1003 = 171 × 591
Now multiplying the highest exponent prime factors to calculate the LCM of 999 and 1003.
LCM(999,1003) = 33 × 371 × 171 × 591
LCM(999,1003) = 1001997
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