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What is the Least Common Multiple of 4557 and 4570?

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 4557 and 4570 is 20825490.

LCM(4557,4570) = 20825490

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Least Common Multiple of 4557 and 4570 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 4557 and 4570, than apply into the LCM equation.

GCF(4557,4570) = 1
LCM(4557,4570) = ( 4557 × 4570) / 1
LCM(4557,4570) = 20825490 / 1
LCM(4557,4570) = 20825490

Least Common Multiple (LCM) of 4557 and 4570 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 4557 and 4570. First we will calculate the prime factors of 4557 and 4570.

Prime Factorization of 4557

Prime factors of 4557 are 3, 7, 31. Prime factorization of 4557 in exponential form is:

4557 = 31 × 72 × 311

Prime Factorization of 4570

Prime factors of 4570 are 2, 5, 457. Prime factorization of 4570 in exponential form is:

4570 = 21 × 51 × 4571

Now multiplying the highest exponent prime factors to calculate the LCM of 4557 and 4570.

LCM(4557,4570) = 31 × 72 × 311 × 21 × 51 × 4571
LCM(4557,4570) = 20825490