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What is the Least Common Multiple of 1053 and 1071?

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 1053 and 1071 is 125307.

LCM(1053,1071) = 125307

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Least Common Multiple of 1053 and 1071 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1053 and 1071, than apply into the LCM equation.

GCF(1053,1071) = 9
LCM(1053,1071) = ( 1053 × 1071) / 9
LCM(1053,1071) = 1127763 / 9
LCM(1053,1071) = 125307

Least Common Multiple (LCM) of 1053 and 1071 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1053 and 1071. First we will calculate the prime factors of 1053 and 1071.

Prime Factorization of 1053

Prime factors of 1053 are 3, 13. Prime factorization of 1053 in exponential form is:

1053 = 34 × 131

Prime Factorization of 1071

Prime factors of 1071 are 3, 7, 17. Prime factorization of 1071 in exponential form is:

1071 = 32 × 71 × 171

Now multiplying the highest exponent prime factors to calculate the LCM of 1053 and 1071.

LCM(1053,1071) = 34 × 131 × 71 × 171
LCM(1053,1071) = 125307