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What is the Least Common Multiple of 21263 and 21270?

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 21263 and 21270 is 452264010.

LCM(21263,21270) = 452264010

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Least Common Multiple of 21263 and 21270 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21263 and 21270, than apply into the LCM equation.

GCF(21263,21270) = 1
LCM(21263,21270) = ( 21263 × 21270) / 1
LCM(21263,21270) = 452264010 / 1
LCM(21263,21270) = 452264010

Least Common Multiple (LCM) of 21263 and 21270 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21263 and 21270. First we will calculate the prime factors of 21263 and 21270.

Prime Factorization of 21263

Prime factors of 21263 are 11, 1933. Prime factorization of 21263 in exponential form is:

21263 = 111 × 19331

Prime Factorization of 21270

Prime factors of 21270 are 2, 3, 5, 709. Prime factorization of 21270 in exponential form is:

21270 = 21 × 31 × 51 × 7091

Now multiplying the highest exponent prime factors to calculate the LCM of 21263 and 21270.

LCM(21263,21270) = 111 × 19331 × 21 × 31 × 51 × 7091
LCM(21263,21270) = 452264010