7 and 15 have the number 1 in common as they are both odd numbers. Additionally, they are both integers and prime numbers.
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The greatest common multiple of 7 and 15, like any two numbers, is infinite.The lowest common multiple, the smallest number into which both 7 and 15 divide, is 105The greatest common factor, the largest number which divides both 7 and 15, is 1.
You find the most common answer appearingexample:15, 15, 16, 13, 14, 4, 7, 8, 15, 25, 15, 15what is the common appearing number here? 15 is the mode
Any multiple of 105.
Because 7 is prime, the highest, lowest and only common factor of 15 and 7 is 1 (one).
The number in common is 5, because it divides both 5 and 15.