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Anonymous
138 = 2 * 3 * 23
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2, 3 and 23
138 is not prime. 138 = 2 * 3 * 23
Since 23 is a factor of 138, their LCM is 138.
Composite
Yes.
The factors of 138 are: 2 x 69 3 x 46 6 x 23 So the prime numbers of 138 would be 3, and 23.