Math experts, I need you?

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Math experts, I need you?

Find the LCM of this set of numbers: 7, 18, and 14

2007-08-01 09:55:55 · 3 answers · asked by ? 4 in Science & Mathematics ➔ Mathematics

the LCM of 45 and 26 is?

2007-08-01 10:03:52 · update #1

3 answers

i also got 126

2007-08-01 10:01:31 · answer #1 · answered by Benjamin S 2 · 0⤊ 1⤋

7 is prime.
18 = 2 * 3^2
14 = 7 * 2.

The LCM needs to contain 7, 2, and 3^2.
It is therefore:
7 * 2 * 3^2
= 126.

2007-08-01 17:02:01 · answer #2 · answered by Anonymous · 0⤊ 0⤋

126

Your prime factors are:

7 -> 7
18 -> 3 * 3 * 2
14 -> 7 * 2

The LCM will be 7*2*3*3, which is the minimal set of prime factors that includes all the prime factors of each individual number above.

2007-08-01 17:00:32 · answer #3 · answered by McFate 7 · 0⤊ 0⤋