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What is the Least Common Multiple of 78842 and 78852?

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 78842 and 78852 is 3108424692.

LCM(78842,78852) = 3108424692

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Least Common Multiple of 78842 and 78852 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78842 and 78852, than apply into the LCM equation.

GCF(78842,78852) = 2
LCM(78842,78852) = ( 78842 × 78852) / 2
LCM(78842,78852) = 6216849384 / 2
LCM(78842,78852) = 3108424692

Least Common Multiple (LCM) of 78842 and 78852 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 78842 and 78852. First we will calculate the prime factors of 78842 and 78852.

Prime Factorization of 78842

Prime factors of 78842 are 2, 79, 499. Prime factorization of 78842 in exponential form is:

78842 = 21 × 791 × 4991

Prime Factorization of 78852

Prime factors of 78852 are 2, 3, 6571. Prime factorization of 78852 in exponential form is:

78852 = 22 × 31 × 65711

Now multiplying the highest exponent prime factors to calculate the LCM of 78842 and 78852.

LCM(78842,78852) = 22 × 791 × 4991 × 31 × 65711
LCM(78842,78852) = 3108424692