What is the Least Common Multiple of 625 and 630?
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 625 and 630 is 78750.
LCM(625,630) = 78750
Least Common Multiple of 625 and 630 with GCF Formula
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 625 and 630, than apply into the LCM equation.
GCF(625,630) = 5
LCM(625,630) = ( 625 × 630) / 5
LCM(625,630) = 393750 / 5
LCM(625,630) = 78750
Least Common Multiple (LCM) of 625 and 630 with Primes
Least common multiple can be found by multiplying the highest exponent prime factors of 625 and 630. First we will calculate the prime factors of 625 and 630.
Prime Factorization of 625
Prime factors of 625 are 5. Prime factorization of 625 in exponential form is:
625 = 54
Prime Factorization of 630
Prime factors of 630 are 2, 3, 5, 7. Prime factorization of 630 in exponential form is:
630 = 21 × 32 × 51 × 71
Now multiplying the highest exponent prime factors to calculate the LCM of 625 and 630.
LCM(625,630) = 54 × 21 × 32 × 71
LCM(625,630) = 78750
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Related Least Common Multiples of 630
- LCM of 630 and 634
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