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What is the Least Common Multiple of 1343 and 1357?

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 1343 and 1357 is 1822451.

LCM(1343,1357) = 1822451

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Least Common Multiple of 1343 and 1357 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1343 and 1357, than apply into the LCM equation.

GCF(1343,1357) = 1
LCM(1343,1357) = ( 1343 × 1357) / 1
LCM(1343,1357) = 1822451 / 1
LCM(1343,1357) = 1822451

Least Common Multiple (LCM) of 1343 and 1357 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 1343 and 1357. First we will calculate the prime factors of 1343 and 1357.

Prime Factorization of 1343

Prime factors of 1343 are 17, 79. Prime factorization of 1343 in exponential form is:

1343 = 171 × 791

Prime Factorization of 1357

Prime factors of 1357 are 23, 59. Prime factorization of 1357 in exponential form is:

1357 = 231 × 591

Now multiplying the highest exponent prime factors to calculate the LCM of 1343 and 1357.

LCM(1343,1357) = 171 × 791 × 231 × 591
LCM(1343,1357) = 1822451