625
16
4 is the least one digit composite number
10 is the smallest 2 digit number.
4096 is the smallest number with exactly 13 factors. (Including 1 and itself as factors).192 is the smallest number with exactly 13 properfactors, (excluding the number itself).120 is the smallest number with at least 13 factors (it has 16 factors)To find the smallest number with exactly N factors (for example, N=12):Factor N into primes, (for example, 12= 2*2*3Subtract 1 from each of the prime factors (for example, 1,1,2)Sort them by largest first (for example, 2,1,1)Raise successive prime numbers to these powers (for example, 2^2,3^1,5^1)Multiply these together (for example: 4*3*5 = 60; 60 is the smallest number with exactly 12 factors).
Yes A whole number is even if its least significant digit is even. The least significant digit of a whole number is the digit in the "ones place". In other words, if the digit at the far right is 0, 2, 4, 6 or 8, the number is even.
97 has two factors.
100015
64 is the least number having exactly 7 factors: 1, 2, 4, 8, 16, 32, and 64.
100.....1,2,4,5,10,20,25,50,100
16,777,216 is one.
It is 105
1050.
Oh, dude, the least number with exactly 8 factors is 24. It's like, got factors 1, 2, 3, 4, 6, 8, 12, and 24. So, yeah, that's the magic number with just the right amount of factors to make it cool.
what is the least 5- digit number which is exactly divisible by 36
16
abcabc=abc x 1001 1001 = 7 x 11 x 13 So such number as at least 4 prime factors: if abc is prime, then 4 factors only if abc is not prime then at least 4 factors
least two-digit composite number = 11