19 doesn't belong. The rest of the numbers are multiples of 3.
8
31 because 3+4=7+4=11+4=15+4 does not equal 31
prime number is a number that could only be divided by itself and one. odd numbers are naturally not divisible by 2 but odd numbers can be divisible by other numbers. one example is 15. 15 is divisible by itself and one but also by 3 and 5.
5 does not belong because it's the only one that is prime, and it is also the only one that is a single digit.58 does not belong because it's the only one that's not a multiple of five.20 does not belong because unlike the other numbers, one of it's digits is not a five.That's the problem with this kind of question. They expect it to have one correct answer, but there are in fact several. Chances are, the expected answer is 58. One could argue though that - having two interesting distinctions - the number five belongs even less than 58 with it's single distinction.
The two numbers are 15 and 31. 15 + 31 = 46.
There are infinitely many such numbers. they belong to the set n*15 where n is any integer.
8
If the series is plus one, times two, plus one, times two, etc., the 8 does not belong.
The answer is 12 every other numbers are odd numbers, but 12 is an even number
Its a NEGATIVE number. A NEGATIVE INTEGER.
To any set that contains it! It belongs to {-15}, or {sqrt(2), -15, pi, -3/7}, or all whole numbers between -43 and 53, or multiples of 5, or composite numbers, or integers, or rational numbers, or real numbers, or complex numbers, etc.
31 because 3+4=7+4=11+4=15+4 does not equal 31
1, because all the numbers are factors of 5.* * * * *Or 5: it is the only prime number.Or 15: it is the only number that is not a factor of 100Or 25: it is the only number with three factorsOr 100: it is the only number with 9 factors
15 because its an odd number whereas 6, 10 & 12 are even numbers.
55 because it is not a multiple of 3
prime number is a number that could only be divided by itself and one. odd numbers are naturally not divisible by 2 but odd numbers can be divisible by other numbers. one example is 15. 15 is divisible by itself and one but also by 3 and 5.
If one number is divisible by another (in this case, 15 is divisible by 5), then the least common multiple is equal to the larger of the numbers (15), and the greatest common factor is equal to the smaller of the numbers (5).If one number is divisible by another (in this case, 15 is divisible by 5), then the least common multiple is equal to the larger of the numbers (15), and the greatest common factor is equal to the smaller of the numbers (5).If one number is divisible by another (in this case, 15 is divisible by 5), then the least common multiple is equal to the larger of the numbers (15), and the greatest common factor is equal to the smaller of the numbers (5).If one number is divisible by another (in this case, 15 is divisible by 5), then the least common multiple is equal to the larger of the numbers (15), and the greatest common factor is equal to the smaller of the numbers (5).