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What is the Least Common Multiple of 7828 and 7842?

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 7828 and 7842 is 30693588.

LCM(7828,7842) = 30693588

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Least Common Multiple of 7828 and 7842 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7828 and 7842, than apply into the LCM equation.

GCF(7828,7842) = 2
LCM(7828,7842) = ( 7828 × 7842) / 2
LCM(7828,7842) = 61387176 / 2
LCM(7828,7842) = 30693588

Least Common Multiple (LCM) of 7828 and 7842 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7828 and 7842. First we will calculate the prime factors of 7828 and 7842.

Prime Factorization of 7828

Prime factors of 7828 are 2, 19, 103. Prime factorization of 7828 in exponential form is:

7828 = 22 × 191 × 1031

Prime Factorization of 7842

Prime factors of 7842 are 2, 3, 1307. Prime factorization of 7842 in exponential form is:

7842 = 21 × 31 × 13071

Now multiplying the highest exponent prime factors to calculate the LCM of 7828 and 7842.

LCM(7828,7842) = 22 × 191 × 1031 × 31 × 13071
LCM(7828,7842) = 30693588