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What is the Least Common Multiple of 63971 and 63980?

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 63971 and 63980 is 4092864580.

LCM(63971,63980) = 4092864580

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Least Common Multiple of 63971 and 63980 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 63971 and 63980, than apply into the LCM equation.

GCF(63971,63980) = 1
LCM(63971,63980) = ( 63971 × 63980) / 1
LCM(63971,63980) = 4092864580 / 1
LCM(63971,63980) = 4092864580

Least Common Multiple (LCM) of 63971 and 63980 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 63971 and 63980. First we will calculate the prime factors of 63971 and 63980.

Prime Factorization of 63971

Prime factors of 63971 are 17, 53, 71. Prime factorization of 63971 in exponential form is:

63971 = 171 × 531 × 711

Prime Factorization of 63980

Prime factors of 63980 are 2, 5, 7, 457. Prime factorization of 63980 in exponential form is:

63980 = 22 × 51 × 71 × 4571

Now multiplying the highest exponent prime factors to calculate the LCM of 63971 and 63980.

LCM(63971,63980) = 171 × 531 × 711 × 22 × 51 × 71 × 4571
LCM(63971,63980) = 4092864580