1 and 313 - It is a Prime number.
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To determine if a number is divisible by 3, you can add up the digits of the number and check if the sum is divisible by 3. For 313, the sum of the digits is 3+1+3=7, which is not divisible by 3. For 351, the sum of the digits is 3+5+1=9, which is divisible by 3. Therefore, 351 is divisible by 3, but 313 is not.
1 and 313 (313 is a prime number).
x x 313 = (x)(313) = 313x
127
449 + 313 = 762