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What is the Least Common Multiple of 7975 and 7995?

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 7975 and 7995 is 12752025.

LCM(7975,7995) = 12752025

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Least Common Multiple of 7975 and 7995 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7975 and 7995, than apply into the LCM equation.

GCF(7975,7995) = 5
LCM(7975,7995) = ( 7975 × 7995) / 5
LCM(7975,7995) = 63760125 / 5
LCM(7975,7995) = 12752025

Least Common Multiple (LCM) of 7975 and 7995 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 7975 and 7995. First we will calculate the prime factors of 7975 and 7995.

Prime Factorization of 7975

Prime factors of 7975 are 5, 11, 29. Prime factorization of 7975 in exponential form is:

7975 = 52 × 111 × 291

Prime Factorization of 7995

Prime factors of 7995 are 3, 5, 13, 41. Prime factorization of 7995 in exponential form is:

7995 = 31 × 51 × 131 × 411

Now multiplying the highest exponent prime factors to calculate the LCM of 7975 and 7995.

LCM(7975,7995) = 52 × 111 × 291 × 31 × 131 × 411
LCM(7975,7995) = 12752025