What is the Least Common Multiple of 988 and 999?
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 999 is 987012.
LCM(988,999) = 987012
Least Common Multiple of 988 and 999 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 999, than apply into the LCM equation.
GCF(988,999) = 1
LCM(988,999) = ( 988 × 999) / 1
LCM(988,999) = 987012 / 1
LCM(988,999) = 987012
Least Common Multiple (LCM) of 988 and 999 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 988 and 999. First we will calculate the prime factors of 988 and 999.
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 999
Prime factors of 999 are 3, 37. Prime factorization of 999 in exponential form is:
999 = 33 × 371
Now multiplying the highest exponent prime factors to calculate the LCM of 988 and 999.
LCM(988,999) = 22 × 131 × 191 × 33 × 371
LCM(988,999) = 987012
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