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What is the Least Common Multiple of 21352 and 21361?

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 21352 and 21361 is 456100072.

LCM(21352,21361) = 456100072

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Least Common Multiple of 21352 and 21361 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21352 and 21361, than apply into the LCM equation.

GCF(21352,21361) = 1
LCM(21352,21361) = ( 21352 × 21361) / 1
LCM(21352,21361) = 456100072 / 1
LCM(21352,21361) = 456100072

Least Common Multiple (LCM) of 21352 and 21361 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21352 and 21361. First we will calculate the prime factors of 21352 and 21361.

Prime Factorization of 21352

Prime factors of 21352 are 2, 17, 157. Prime factorization of 21352 in exponential form is:

21352 = 23 × 171 × 1571

Prime Factorization of 21361

Prime factors of 21361 are 41, 521. Prime factorization of 21361 in exponential form is:

21361 = 411 × 5211

Now multiplying the highest exponent prime factors to calculate the LCM of 21352 and 21361.

LCM(21352,21361) = 23 × 171 × 1571 × 411 × 5211
LCM(21352,21361) = 456100072