What is the Least Common Multiple of 1007 and 1020?
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 1007 and 1020 is 1027140.
LCM(1007,1020) = 1027140
Least Common Multiple of 1007 and 1020 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1007 and 1020, than apply into the LCM equation.
GCF(1007,1020) = 1
LCM(1007,1020) = ( 1007 × 1020) / 1
LCM(1007,1020) = 1027140 / 1
LCM(1007,1020) = 1027140
Least Common Multiple (LCM) of 1007 and 1020 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 1007 and 1020. First we will calculate the prime factors of 1007 and 1020.
Prime Factorization of 1007
Prime factors of 1007 are 19, 53. Prime factorization of 1007 in exponential form is:
1007 = 191 × 531
Prime Factorization of 1020
Prime factors of 1020 are 2, 3, 5, 17. Prime factorization of 1020 in exponential form is:
1020 = 22 × 31 × 51 × 171
Now multiplying the highest exponent prime factors to calculate the LCM of 1007 and 1020.
LCM(1007,1020) = 191 × 531 × 22 × 31 × 51 × 171
LCM(1007,1020) = 1027140
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