Which of the following numbers are co-prime?

30 and 415

Dear Student

Factors of 30 are 1, 2, 3, 5, 6, 10, 15, 30
Factors of 415 are 1, 5, 83, 415
Common factors = 1, 5
Since, their common factor is other than 1.
Hence, the given two numbers are not co-prime
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Thanks