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What is the Least Common Multiple of 74770 and 74787?

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 74770 and 74787 is 5591823990.

LCM(74770,74787) = 5591823990

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Least Common Multiple of 74770 and 74787 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 74770 and 74787, than apply into the LCM equation.

GCF(74770,74787) = 1
LCM(74770,74787) = ( 74770 × 74787) / 1
LCM(74770,74787) = 5591823990 / 1
LCM(74770,74787) = 5591823990

Least Common Multiple (LCM) of 74770 and 74787 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 74770 and 74787. First we will calculate the prime factors of 74770 and 74787.

Prime Factorization of 74770

Prime factors of 74770 are 2, 5, 7477. Prime factorization of 74770 in exponential form is:

74770 = 21 × 51 × 74771

Prime Factorization of 74787

Prime factors of 74787 are 3, 97, 257. Prime factorization of 74787 in exponential form is:

74787 = 31 × 971 × 2571

Now multiplying the highest exponent prime factors to calculate the LCM of 74770 and 74787.

LCM(74770,74787) = 21 × 51 × 74771 × 31 × 971 × 2571
LCM(74770,74787) = 5591823990