It is 4.
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Zero is not a factor of 4. Zero is only a factor of zero! The factors of 4 are 1, 4, 2 The factors of zero are zero and any other number. Therefore the common factors are 1,2 and 4
Well, honey, if you're asking how many zeros are in the number 4, the answer is zero. That's right, zero. Because the number 4 is made up of, you guessed it, four, not a single zero in sight. So, next time you're counting zeros, make sure to steer clear of the number 4.
-4 is a negative number and is less then zero, 4 is a positive number and is more then zero.
To round a number to a particular digit, look at the digit immediately to the right of your target, in this case, the ones place. If that digit is 4 or lower, zero it and everything to the right of it out. If that digit is 5 or higher, increase the target digit by one and zero everything to the right of it out. If your target digit is a 9, increasing it will turn it to zero and increase the digit to the left of it by one.
When rounding to a specific place, take a look at the digit immediately to the right of the target, in this case, the thousandths place. If that digit is 4 or less, zero everything to the right of the target out. If that digit is 5 through 9, increase the target by one and zero everything to the right of it out. If the target is a 9, increasing it will turn it to zero and increase the digit to the left of the target by one.