That's not a requirement at all.
Here is a perfectly good arithmetic sequence:
0.1, 0.4, 0.7, 1.0, 1.3, 1.6, 1.9, 2.2, . . . . .
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Two numbers can have only one arithmetic mean. In this case, it is -2.5Two numbers can have only one arithmetic mean. In this case, it is -2.5Two numbers can have only one arithmetic mean. In this case, it is -2.5Two numbers can have only one arithmetic mean. In this case, it is -2.5
In the whole wide world of arithmetic and math, there is only one single number that equals 42. That number is . . . . . 42 .
it is a Greek word meaning the Science of Numbers or the Art of CountingThe word arithmetic is a noun. Its definition signifies it as the specific branch of math that deals with numbers only.
No because whole numbers that have only two factors are prime numbers
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