The number 642 is not a prime number as it can be divided by 2 aswell as itself and one.
In today's notation 642 = DCXLII in Roman numerals
The number 642 in Roman numerals is represented as DCXLII. D represents 500, C represents 100, XL represents 40, and II represents 2. When combined, they form 642.
10.7 Hours
You can add up the digits, 6+4+2=12 and if that number is divisible by three, so it the original number. So 12 is certainly divisible by 3 so that means 642 is also.
The number 642 is not a prime number as it can be divided by 2 aswell as itself and one.
In today's notation 642 = DCXLII in Roman numerals
Nope, a 742 centerfire but no 642.
The prime factorization of 642 is 2 x 3 x 107.
There are 80.25 cups in 642 ounces.
They are: 2, 3 and 107
1 x 642, 2 x 321, 3 x 214, 6 x 107.
There are infinitely many possible answers. For example, 1*642 or 10*64.2
642 642
642
987 - 345 = 642
642/10 = 64 with a remainder of 2, written as 64 and 2/10