LCM for 90 and 255

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What's the Least Common Multiple (LCM) of 90 and 255?

Answer

LCM of 90 and 255 is
1,530

First common multiples: 1,530; 3,060; 4,590; …

1,530 is divisible by both: 1,530 ÷ 90 = 17; 1,530 ÷ 255 = 6 — and 17 and 6 share no factor but 1, so no smaller number is. As a common denominator: multiply the top and bottom of x/90 by 17 and of y/255 by 6.

90 = 2 × 32 × 5

255 = 3 × 5 × 17

Prime90255Highest power
22—2
332332
5555
17—1717

— = power 0: the prime is not a factor of this number; the LCM takes it from the number that has it.

LCM = 2 × 32 × 5 × 17 = 1,530

See Also

FAQ

What's the Least Common Multiple (LCM) of 90 and 255?

LCM of 90 and 255 is 1,530

How to find the LCM of 90 and 255 using prime factorization?

To find the LCM of 90 and 255, find all prime factors of both numbers, then multiply the highest power of each prime factor. The result is 1,530.

What is the difference between LCM and GCF?

LCM (Least Common Multiple) is the smallest number divisible by both numbers, while GCF (Greatest Common Factor) is the largest number that divides both. For 90 and 255: LCM = 1,530, GCF = 15.