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What is the Least Common Multiple of 31396 and 31402?

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 31396 and 31402 is 492948596.

LCM(31396,31402) = 492948596

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Least Common Multiple of 31396 and 31402 with GCF Formula

The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 31396 and 31402, than apply into the LCM equation.

GCF(31396,31402) = 2
LCM(31396,31402) = ( 31396 × 31402) / 2
LCM(31396,31402) = 985897192 / 2
LCM(31396,31402) = 492948596

Least Common Multiple (LCM) of 31396 and 31402 with Primes

Least common multiple can be found by multiplying the highest exponent prime factors of 31396 and 31402. First we will calculate the prime factors of 31396 and 31402.

Prime Factorization of 31396

Prime factors of 31396 are 2, 47, 167. Prime factorization of 31396 in exponential form is:

31396 = 22 × 471 × 1671

Prime Factorization of 31402

Prime factors of 31402 are 2, 7, 2243. Prime factorization of 31402 in exponential form is:

31402 = 21 × 71 × 22431

Now multiplying the highest exponent prime factors to calculate the LCM of 31396 and 31402.

LCM(31396,31402) = 22 × 471 × 1671 × 71 × 22431
LCM(31396,31402) = 492948596