单词	relatively prime
释义	Relatively Prime When two numbers have no common factors other than 1. In other words there is no value that you could divide them both by exactly (without any remainder). 21 and 22 are relatively prime: • The factors of 21 are 1, 3, 7 and 21 • The factors of 22 are 1, 2, 11 and 22 (the only common factor is 1) But 21 and 24 are NOT relatively prime: • The factors of 21 are 1, 3, 7 and 21 • The factors of 24 are 1, 2, 3, 4, 6, 8, 12 and 24 (the common factors are 1 AND 3) Relatively Prime is also called "coprime" or "mutually prime". Here we see that 12 and 16 are NOT relatively prime See: Factor
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