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What is the largest prime number less than 1000?
997. To test that 997 is prime, we only need to test values up [997^.5], so up to 31. Using divisibility rules, we can immediately eliminate several possible divisors. Rule for 7: If you have a number, separate the last digit from the proceeding ones. Subtract twice the last digit from the number created from slicing off the last part. if that's divisible by seven, the whole number is. For example, take 343. 34-2(3) is 28, which is divisible by 7, so 343 is divisible by 7 Rule for 3: sum of digits is divisible by 3. Rule for 2: last digit is divisible by 2. Rule for 2^n: last n digits form a number that is divisible by 2^n Rule for 5: last digit is 5 or 0. Rule for 11: Difference of alternating sums of the digits, 432113 is divisible by 11 because (4+2+1)-(3+1+3) is divisible by eleven. Rule for 9: sum of digits is divisible by 9. Trying 13, 17, 19, 23, and 29, we see these all fail. So 997 is indeed prime.
Is twenty seven a prime number?
No, it is not a prime number because it can be divided by 9 to get 3. A prime number is only divisible by itself and one.
What seven-digit number can be rounded to 6300000?
6312345, to the nearest hundred thousand.
How do you write 4.007 in word form?
To write 4.007 in word form, you would say "four and seven thousandths." In this decimal number, the digit 4 is in the ones place, the digit 0 is in the tenths place, the digit 0 is in the hundredths place, and the digit 7 is in the thousandths place. So, by reading each digit's place value, we can express 4.007 as "four and seven thousandths."
How do you write 0.770 In word form?
To write 0.770 in word form, you would say "zero point seven seven zero." This is because each digit after the decimal point is read individually. The first digit after the decimal point is read as "seven," the second digit as "seven" again, and the third digit as "zero."
