0
Four: 24, 48, 72, 96.
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What three digit number has the most factors?
Using prime factorization, there are 2 three digit numbers with 9 factors: 512 and 768. There are no three digit numbers with 10 or more prime factors. 512=2^9 and 768=3*2^8
What are single digit factors of a number?
All numbers have factors. Some factors have one digit. The factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24 The single digit factors of 24 are 1, 2, 3, 4, 6 and 8.
How many 2 digit prime numbers are there whose unit digit is greater its tens digit?
Ten.
How many 2 digit odd numbers are there?
45
How many two digit numbers are not multiples of 2?
All of the odd numbers between 11 and 99 inclusive are two digit numbers that are not multiples of 2. There are 45 of them.
How many 2 digit numbers have the factors?
All of them.
How many 2 digit numbers have even no of factors?
Total number of 2-digit numbers = (99 - 9) = 90 of themEvery number that isn't a perfect square has an even number of factors.2-digit numbers that are perfect squares: 16, 25, 36, 49, 64, and 81 = 6 of themRemaining 2-digit numbers = (99 - 6) = 93 .
What 2 digit numbers has 9 factors?
36
What three digit number has the most factors?
Using prime factorization, there are 2 three digit numbers with 9 factors: 512 and 768. There are no three digit numbers with 10 or more prime factors. 512=2^9 and 768=3*2^8
How many 2 digit numbers have factors of 2 and 5?
Two digit numbers are in the range: 10 to 99. Having both 2 & 5 as factors, means the number will be divisible by 10, so there are nine numbers that fit this:{10, 20, 30, 40, 50, 60, 70, 80, 90}
What are single digit factors of a number?
All numbers have factors. Some factors have one digit. The factors of 24 are 1, 2, 3, 4, 6, 8, 12, 24 The single digit factors of 24 are 1, 2, 3, 4, 6 and 8.
How many a 2 -digit numbers contain the digit 4?
-2
How many 2-digit numbers are there in which the one digit in greater than tens digit?
How many two digit numbers are there in which the tens digit is greater than the one’s digit ?
How many 2 digit numbers contain the digit 4?
17
How many 2 digit descending numbers are there?
There are 45 such numbers.
How many 2 digit numbers have no 2 at all?
72. (with the range of two digit numbers being from 10 to 99).
How many 2-digit numbers contain the digit?
It would help to know which digit. 0 appears in 9 numbers and each of the others in 18 numbers.
