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What is the Least Common Multiple of 21562 and 21567?

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 21562 and 21567 is 465027654.

LCM(21562,21567) = 465027654

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Least Common Multiple of 21562 and 21567 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21562 and 21567, than apply into the LCM equation.

GCF(21562,21567) = 1
LCM(21562,21567) = ( 21562 × 21567) / 1
LCM(21562,21567) = 465027654 / 1
LCM(21562,21567) = 465027654

Least Common Multiple (LCM) of 21562 and 21567 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 21562 and 21567. First we will calculate the prime factors of 21562 and 21567.

Prime Factorization of 21562

Prime factors of 21562 are 2, 10781. Prime factorization of 21562 in exponential form is:

21562 = 21 × 107811

Prime Factorization of 21567

Prime factors of 21567 are 3, 7, 13, 79. Prime factorization of 21567 in exponential form is:

21567 = 31 × 71 × 131 × 791

Now multiplying the highest exponent prime factors to calculate the LCM of 21562 and 21567.

LCM(21562,21567) = 21 × 107811 × 31 × 71 × 131 × 791
LCM(21562,21567) = 465027654