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What is the Least Common Multiple of 68961 and 68969?

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 68961 and 68969 is 4756171209.

LCM(68961,68969) = 4756171209

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Least Common Multiple of 68961 and 68969 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 68961 and 68969, than apply into the LCM equation.

GCF(68961,68969) = 1
LCM(68961,68969) = ( 68961 × 68969) / 1
LCM(68961,68969) = 4756171209 / 1
LCM(68961,68969) = 4756171209

Least Common Multiple (LCM) of 68961 and 68969 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 68961 and 68969. First we will calculate the prime factors of 68961 and 68969.

Prime Factorization of 68961

Prime factors of 68961 are 3, 127, 181. Prime factorization of 68961 in exponential form is:

68961 = 31 × 1271 × 1811

Prime Factorization of 68969

Prime factors of 68969 are 17, 4057. Prime factorization of 68969 in exponential form is:

68969 = 171 × 40571

Now multiplying the highest exponent prime factors to calculate the LCM of 68961 and 68969.

LCM(68961,68969) = 31 × 1271 × 1811 × 171 × 40571
LCM(68961,68969) = 4756171209