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What is the Least Common Multiple of 1043 and 1057?

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 1043 and 1057 is 157493.

LCM(1043,1057) = 157493

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Least Common Multiple of 1043 and 1057 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1043 and 1057, than apply into the LCM equation.

GCF(1043,1057) = 7
LCM(1043,1057) = ( 1043 × 1057) / 7
LCM(1043,1057) = 1102451 / 7
LCM(1043,1057) = 157493

Least Common Multiple (LCM) of 1043 and 1057 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1043 and 1057. First we will calculate the prime factors of 1043 and 1057.

Prime Factorization of 1043

Prime factors of 1043 are 7, 149. Prime factorization of 1043 in exponential form is:

1043 = 71 × 1491

Prime Factorization of 1057

Prime factors of 1057 are 7, 151. Prime factorization of 1057 in exponential form is:

1057 = 71 × 1511

Now multiplying the highest exponent prime factors to calculate the LCM of 1043 and 1057.

LCM(1043,1057) = 71 × 1491 × 1511
LCM(1043,1057) = 157493