What is the Least Common Multiple of 1071 and 1078?
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 1071 and 1078 is 164934.
LCM(1071,1078) = 164934
Least Common Multiple of 1071 and 1078 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1071 and 1078, than apply into the LCM equation.
GCF(1071,1078) = 7
LCM(1071,1078) = ( 1071 × 1078) / 7
LCM(1071,1078) = 1154538 / 7
LCM(1071,1078) = 164934
Least Common Multiple (LCM) of 1071 and 1078 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 1071 and 1078. First we will calculate the prime factors of 1071 and 1078.
Prime Factorization of 1071
Prime factors of 1071 are 3, 7, 17. Prime factorization of 1071 in exponential form is:
1071 = 32 × 71 × 171
Prime Factorization of 1078
Prime factors of 1078 are 2, 7, 11. Prime factorization of 1078 in exponential form is:
1078 = 21 × 72 × 111
Now multiplying the highest exponent prime factors to calculate the LCM of 1071 and 1078.
LCM(1071,1078) = 32 × 72 × 171 × 21 × 111
LCM(1071,1078) = 164934
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