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What is the Least Common Multiple of 69971 and 69981?

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 69971 and 69981 is 4896640551.

LCM(69971,69981) = 4896640551

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Least Common Multiple of 69971 and 69981 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 69971 and 69981, than apply into the LCM equation.

GCF(69971,69981) = 1
LCM(69971,69981) = ( 69971 × 69981) / 1
LCM(69971,69981) = 4896640551 / 1
LCM(69971,69981) = 4896640551

Least Common Multiple (LCM) of 69971 and 69981 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 69971 and 69981. First we will calculate the prime factors of 69971 and 69981.

Prime Factorization of 69971

Prime factors of 69971 are 11, 6361. Prime factorization of 69971 in exponential form is:

69971 = 111 × 63611

Prime Factorization of 69981

Prime factors of 69981 are 3, 23327. Prime factorization of 69981 in exponential form is:

69981 = 31 × 233271

Now multiplying the highest exponent prime factors to calculate the LCM of 69971 and 69981.

LCM(69971,69981) = 111 × 63611 × 31 × 233271
LCM(69971,69981) = 4896640551