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What is the Least Common Multiple of 79679 and 79690?

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 79679 and 79690 is 6349619510.

LCM(79679,79690) = 6349619510

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Least Common Multiple of 79679 and 79690 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 79679 and 79690, than apply into the LCM equation.

GCF(79679,79690) = 1
LCM(79679,79690) = ( 79679 × 79690) / 1
LCM(79679,79690) = 6349619510 / 1
LCM(79679,79690) = 6349619510

Least Common Multiple (LCM) of 79679 and 79690 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 79679 and 79690. First we will calculate the prime factors of 79679 and 79690.

Prime Factorization of 79679

Prime factors of 79679 are 17, 43, 109. Prime factorization of 79679 in exponential form is:

79679 = 171 × 431 × 1091

Prime Factorization of 79690

Prime factors of 79690 are 2, 5, 13, 613. Prime factorization of 79690 in exponential form is:

79690 = 21 × 51 × 131 × 6131

Now multiplying the highest exponent prime factors to calculate the LCM of 79679 and 79690.

LCM(79679,79690) = 171 × 431 × 1091 × 21 × 51 × 131 × 6131
LCM(79679,79690) = 6349619510