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How many three digit numbers are multiples of 21?
42 of them.
How many two digit numbers are multiples of 7 and factors of 84?
Four. They are 14, 21, 28, and 42.
How many three digit numbers are multiples of 20?
To find how many three-digit numbers are multiples of 20, we need to determine the range of three-digit numbers divisible by 20. The smallest three-digit number divisible by 20 is 100, and the largest is 980. To find the count of numbers in this range, we can divide the largest number by 20 and subtract the result of dividing the smallest number by 20, then add 1 to account for the inclusive range. Therefore, the number of three-digit multiples of 20 is (980/20) - (100/20) + 1 = 49 - 5 + 1 = 45.
How many of the numbers are multiples of one?
Every number has 1 as a factor.
How many numbers are there that are multiples of 12 and factors of 66?
There are none.
How many two digit counting numbers are either multiples of 2 or multiples of 3?
60 numbers
How many three digit counting numbers are not multiples of 2?
There are 450 of them.
How many three-digit counting numbers are not multiples of 5?
There are 720 of them.
How many four-digit counting numbers are not multiples of 10?
8100
How many two-digit counting numbers are not multiples of 10?
81
How many three-digit counting numbers are not multiples of 2?
The 3-digit counting numbers are 100 through 999 = 900 numbers.Half them are multiples of 2 (even numbers).The other half are not . . . 450 of them.
How many four digit counting numbers are not multiples of two?
4500 of them.
How many three digit counting numbers are not multiples of 10?
There are 9*10*9 = 810 such numbers.
How many three digit counting numbers are multiples of 2 but not of 55?
There are 898 three-digit even numbers. Nine of them are multiples of 55. That leaves 889 * * * * * There are 450 three-digit even numbers and 17 of them are multiples of 55. So that leaves 433.
How many 3 digit counting numbers are not multiples of 5?
There are 720 of them. The three digit counting numbers are 100-999. All multiples of 5 have their last digit as 0 or 5. There are 9 possible numbers {1-9} for the first digit, There are 10 possible numbers {0-9} for each of the first digits, There are 8 possible numbers {1-4, 6-9} for each of the first two digits, Making 9 x 10 x 8 = 720 possible 3 digit counting numbers not multiples of 5.
How many two-digit counting numbers are either multiples of 2 or multiples of 3?
45 multiples of 2 plus 30 multiples of 3 minus 15 multiples of 6 equals 60 numbers
How many two digit counting numbers are not multiples of ten?
I believe there are 81. There are 9 after every multiple of 10, including 90.
